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<div class="title">opennurbs_archive.h</div>  </div>
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<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* $NoKeywords: $ */</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// Copyright (c) 1993-2012 Robert McNeel &amp; Associates. All rights reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// OpenNURBS, Rhinoceros, and Rhino3D are registered trademarks of Robert</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// McNeel &amp; Associates.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// THIS SOFTWARE IS PROVIDED &quot;AS IS&quot; WITHOUT EXPRESS OR IMPLIED WARRANTY.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">// ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">// MERCHANTABILITY ARE HEREBY DISCLAIMED.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">//              </span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// For complete openNURBS copyright information see &lt;http://www.opennurbs.org&gt;.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#if !defined(ON_ARCHIVE_INC_)</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#define ON_ARCHIVE_INC_</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"><a class="line" href="class_o_n___file_stream.html">   20</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___file_stream.html">ON_FileStream</a></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;{</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">    Portable wrapper for C runtime fopen().</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">    filename - [in]</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">    mode - [in]</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">    Use the ON_FileStream static functions for reading, writing, </span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">    seeking, position finding with the FILE pointer returned</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">    by this function.</span></div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;  <span class="keyword">static</span> FILE* Open( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* filename, <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* mode );</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">    Portable wrapper for C runtime fopen().</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="comment">    filename - [in]</span></div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="comment">    mode - [in]</span></div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">    Use the ON_FileStream static functions for reading, writing, </span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">    seeking, position finding with the FILE pointer returned</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="comment">    by this function.</span></div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;  <span class="keyword">static</span> FILE* Open( <span class="keyword">const</span> <span class="keywordtype">char</span>* filename, <span class="keyword">const</span> <span class="keywordtype">char</span>* mode );</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="comment">    Portable wrapper for C runtime fclose().</span></div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">       0: successful</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="comment">      -1: null fp parameter</span></div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;<span class="comment">    != 0: fclose() failure code</span></div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">int</span> Close( FILE* fp );</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160; </div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;<span class="comment">    Portable wrapper for C runtime ftell().</span></div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;<span class="comment">    &gt;= 0: current file position</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;<span class="comment">      -1: an error occured</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keyword">static</span> ON__INT64 CurrentPosition( FILE* fp );</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160; </div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;<span class="comment">    Portable wrapper for C runtime fseek(fp,offset,SEEK_CUR).</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> SeekFromCurrentPosition( FILE* fp, ON__INT64 offset );</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;<span class="comment">    Portable wrapper for C runtime fseek(fp,offset,SEEK_SET).</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> SeekFromStart( FILE* fp, ON__INT64 offset );</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">    Portable wrapper for C runtime fseek(fp,offset,SEEK_END).</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> SeekFromEnd( FILE* fp, ON__INT64 offset );</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="comment">    Portable wrapper for C runtime fseek(fp,offset,origin).</span></div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="comment">    origin - [in]</span></div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="comment">      SEEK_SET (0): seek from beginning of file.  </span></div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;<span class="comment">      SEEK_CUR (1): seek from current position of file pointer.</span></div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;<span class="comment">      SEEK_END (2): seek from end of file.</span></div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> Seek( FILE* fp, ON__INT64 offset, <span class="keywordtype">int</span> orgin );</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="comment">    Portable wrapper for C runtime fread(buffer,1,count,fp).</span></div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open()</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="comment">    count - [in]</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="comment">      number of bytes to read.</span></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;<span class="comment">    buffer - [out]</span></div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;<span class="comment">      read bytes are stored in this buffer</span></div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;<span class="comment">    number of bytes read</span></div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  <span class="keyword">static</span> ON__UINT64 Read( FILE* fp, ON__UINT64 count, <span class="keywordtype">void</span>* buffer );</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;<span class="comment">    Portable wrapper for C runtime fwrite(buffer,1,count,fp).</span></div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open()</span></div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;<span class="comment">    count - [in]</span></div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment">      number of bytes to write</span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment">    buffer - [in]</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="comment">      data to be written</span></div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="comment">    number of bytes written.</span></div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;  <span class="keyword">static</span> ON__UINT64 Write( FILE* fp, ON__UINT64 count, <span class="keyword">const</span> <span class="keywordtype">void</span>* buffer );</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="comment">    Portable wrapper for C runtime fflush(fp).</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;<span class="comment">    true if flush was successful.  False if an error occured.</span></div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> Flush( FILE* fp );</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160; </div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;<span class="comment">    Portable wrapper for C runtime fstat().</span></div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;<span class="comment">      FILE pointer returned by ON_FileStream::Open().</span></div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;<span class="comment">    file_size - [out]</span></div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="comment">      If file_size is not null, the the size of the file</span></div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;<span class="comment">      in bytes returned here</span></div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<span class="comment">    file_creation_time - [out]</span></div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;<span class="comment">      If file_creation_time is not null, then the time the file </span></div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="comment">      was created is returned here as the number of seconds since</span></div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;<span class="comment">      midnight January 1, 1970.</span></div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;<span class="comment">    file_last_modified_time - [out]</span></div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="comment">      If file_last_modified_time is not null, then the time the file</span></div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="comment">      was last modified is returned here as the number of seconds</span></div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;<span class="comment">      since midnight January 1, 1970.</span></div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;<span class="comment">    true if the query was successful.  False if an error occured.</span></div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">bool</span> GetFileInformation( </div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    FILE* fp,</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    ON__UINT64* file_size,</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;    ON__UINT64* file_create_time,</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;    ON__UINT64* file_last_modified_time</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;    );</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;};</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160; </div>
<div class="line"><a name="l00187"></a><span class="lineno"><a class="line" href="class_o_n___file_iterator.html">  187</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___file_iterator.html">ON_FileIterator</a></div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;{</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;  <a class="code" href="class_o_n___file_iterator.html">ON_FileIterator</a>();</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;  ~<a class="code" href="class_o_n___file_iterator.html">ON_FileIterator</a>();</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;  <span class="keywordtype">void</span> Destroy();</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160; </div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;<span class="comment">    Find the first matching file in the directory.</span></div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="comment">    directory_name - [in]</span></div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;<span class="comment">      The directory to look in.</span></div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;<span class="comment">    file_name_filter - [in]</span></div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;<span class="comment">      If this paramter is null, then the iteration</span></div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;<span class="comment">      includes all names in the directory.</span></div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="comment">      The file name to search for. This parameter can </span></div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="comment">      include wildcard characters, such as an</span></div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;<span class="comment">      asterisk (*) or a question mark (?). For example,</span></div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;<span class="comment">      &quot;\rootdir\subdir\*.*&quot;  will iterate all files in</span></div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;<span class="comment">      the \rootdir\subdir\ directory.</span></div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;<span class="comment">  Example:</span></div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;<span class="comment">          // Iterate through the files in a directory named &quot;\rootdir\subdir&quot;</span></div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="comment">          FILE* fp = 0;</span></div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;<span class="comment">          ON_FileIterator fit;</span></div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;<span class="comment">          const char* directory = &quot;\\rootdir\\subdir&quot;;</span></div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;<span class="comment">          for ( const wchar_t* filename = fit.FirstFile( directory, &quot;*.3dm&quot; );</span></div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="comment">                0 != filename;</span></div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;<span class="comment">                filename = fit.NextFile()</span></div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;<span class="comment">              )</span></div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="comment">          {</span></div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;<span class="comment">            if ( fit.CurrentFileIsDirectory() )</span></div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;<span class="comment">              continue;</span></div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;<span class="comment">            ON_String fullpath = directory;</span></div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;<span class="comment">            fullpath += &#39;\\&#39;;</span></div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;<span class="comment">            fullpath += filename;</span></div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;<span class="comment">            FILE* fp = ON_FileStream::Open(fullpath,&quot;rb&quot;);</span></div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;<span class="comment">            if ( 0 == fp )</span></div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;<span class="comment">            {</span></div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;<span class="comment">              continue;</span></div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;<span class="comment">            }</span></div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;<span class="comment">            ...</span></div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;<span class="comment">            ON_FileStream::Close(fp);</span></div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="comment">            fp = 0;</span></div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="comment">          }</span></div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;<span class="comment">    NULL if no matching files are present in the directory.</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* FirstFile( </div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* directory_name, </div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* file_name_filter</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;    );</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160; </div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* FirstFile( </div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">char</span>* directory_name, </div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">char</span>* file_name_filter</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;    );</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160; </div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;<span class="comment">    Find the next matching file in the directory.</span></div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;<span class="comment">    NULL if no more matching files are present in the directory.</span></div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* NextFile();</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160; </div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* CurrentFileName() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160; </div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;  ON__UINT64 CurrentFileSize() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160; </div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="comment">  Returns </span></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;<span class="comment">    true if the current &quot;file&quot; is a directory.</span></div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;  <span class="keywordtype">bool</span> CurrentFileIsDirectory() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160; </div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;<span class="comment">  Returns </span></div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;<span class="comment">    true if the current file or directory is hidden.</span></div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="comment">    This means its name begins with a &#39;.&#39; or it&#39;s</span></div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="comment">    Windows hidden attribute is true.</span></div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;  <span class="keywordtype">bool</span> CurrentFileIsHidden() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160; </div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;  <span class="keywordtype">bool</span> GetCurrentFullPathFileName( <a class="code" href="class_o_n__w_string.html">ON_wString</a>&amp; filename ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160; </div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;<span class="comment">    File creation time in seconds since January 1, 1970</span></div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;  ON__UINT64 CurrentFileCreateTime() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160; </div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;<span class="comment">    File last modified time in seconds since January 1, 1970</span></div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;  ON__UINT64 CurrentFileLastModifiedTime() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160; </div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;<span class="comment">    File last access time in seconds since January 1, 1970</span></div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;  ON__UINT64 CurrentFileLastAccessTime() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160; </div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;<span class="comment">    Number of matching files returned so far.</span></div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;  ON__UINT64 Count() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160; </div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;  <span class="comment">// Used by Windows ::Find</span></div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;  ON__UINT64 m_count;</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;  <a class="code" href="class_o_n__w_string.html">ON_wString</a> m_directory;</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160; </div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<span class="preprocessor">#if defined(ON_COMPILER_MSC)</span></div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;  ON__UINT32 m_file_attributes_mask;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;  HANDLE m_h;</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  WIN32_FIND_DATA m_fd;</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;  <a class="code" href="class_o_n__w_string.html">ON_wString</a> m_ws_file_name_filter;</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;  <a class="code" href="class_o_n___string.html">ON_String</a> m_utf8_file_name_filter;</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;  DIR* m_dir;</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;  <span class="keyword">struct </span>dirent m_dirent;</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;  <span class="keywordtype">char</span> m_dirent_name_buffer[NAME_MAX+1]; <span class="comment">// &lt; this field provide storage for m_dirent.d_name[]</span></div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160; </div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;  <span class="comment">// information about the current file</span></div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;  <span class="keywordtype">wchar_t</span> m_current_name[1024];</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;  ON__UINT64 m_current_file_attributes; <span class="comment">// 1 = regular file, 2 = directory</span></div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  ON__UINT64 m_current_file_size;</div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;  ON__UINT64 m_current_file_create_time;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;  ON__UINT64 m_current_last_modified_time;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  ON__UINT64 m_current_last_access_time;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;};</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160; </div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160; </div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;<span class="comment">// ON_Buffer </span></div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160; </div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;<span class="keyword">typedef</span> void (*ON_Buffer_ErrorHandler)(<span class="keyword">class </span><a class="code" href="class_o_n___buffer.html">ON_Buffer</a>*);</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160; </div>
<div class="line"><a name="l00334"></a><span class="lineno"><a class="line" href="class_o_n___buffer.html">  334</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___buffer.html">ON_Buffer</a></div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;{</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;  <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>();</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;  ~<a class="code" href="class_o_n___buffer.html">ON_Buffer</a>();</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160; </div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;  <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>(<span class="keyword">const</span> <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; src);</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;  <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; operator=(<span class="keyword">const</span> <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; src);</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160; </div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;<span class="comment">    Compare contents of buffers.</span></div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;<span class="comment">  Paramters:</span></div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;<span class="comment">    a - [in]</span></div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;<span class="comment">    b - [in]</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;<span class="comment">    -1: a &lt; b</span></div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;<span class="comment">     0: a == b</span></div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;<span class="comment">     1: a &gt; b</span></div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">int</span> Compare( <span class="keyword">const</span> <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; a, <span class="keyword">const</span> <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; b );</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160; </div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;  <span class="keywordtype">void</span> Destroy();</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;  <span class="keywordtype">void</span> EmergencyDestroy();</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160; </div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;<span class="comment">    True if Size() == CurrentPosition().</span></div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="comment">    It is possible to seek beyond the end of the buffer.</span></div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;<span class="comment">    In this case, the current position will be past the end</span></div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;<span class="comment">    of the buffer and AtEnd() will return false.</span></div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160; </div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;<span class="comment">    Number of bytes currently in the buffer.</span></div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;<span class="comment">    It is possible to seek beyond the end of the buffer.</span></div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;<span class="comment">    In this case, the current position will be past the end</span></div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;<span class="comment">    of the buffer and CurrentPosition() will be greater than</span></div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;<span class="comment">    Size().</span></div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  ON__UINT64 Size() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160; </div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;<span class="comment">    32-bit CRC of the buffer contents.</span></div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;<span class="comment">    </span></div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;  ON__UINT32 CRC32( ON__UINT32 current_remainder ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160; </div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160; </div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="comment">    Current position in the buffer.</span></div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;<span class="comment">    It is possible to seek beyond the end of the buffer.</span></div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;<span class="comment">    In this case, the current position will be past the end</span></div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;<span class="comment">    of the buffer and CurrentPosition() will be greater than</span></div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;<span class="comment">    Size().</span></div>
<div class="line"><a name="l00397"></a><span class="lineno">  397</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;  ON__UINT64 CurrentPosition() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;  </div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;<span class="comment">    size - [in]</span></div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;<span class="comment">      number of bytes to write.</span></div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;<span class="comment">    buffer - [in]</span></div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;<span class="comment">      values to write.</span></div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;<span class="comment">    Number of bytes written buffer.</span></div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;  ON__UINT64 Write( ON__UINT64 size, <span class="keyword">const</span> <span class="keywordtype">void</span>* buffer );</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160; </div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;<span class="comment">    size - [in]</span></div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="comment">      number of bytes to read.</span></div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;<span class="comment">    buffer - [out]</span></div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="comment">      read values are returned in buffer.</span></div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;<span class="comment">    Number of bytes read into buffer. For example, </span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;<span class="comment">    if CurrentPosition() &lt;= Size() and </span></div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;<span class="comment">    size &gt; (Size() - CurrentPosition()) and</span></div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;<span class="comment">    buffer is not null, then the value</span></div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;<span class="comment">    (Size() - CurrentPosition()) is returned.</span></div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;<span class="comment">    If the size parameter is zero, then nothing is done.</span></div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;<span class="comment">    When CurrentPosition() &lt;= Size(), attempts to read more </span></div>
<div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;<span class="comment">    than (Size() - CurrentPosition()) bytes do not generate </span></div>
<div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="comment">    an error. When CurrentPosition() &gt; Size(), any attempt</span></div>
<div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;<span class="comment">    to read generates an error.</span></div>
<div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;  ON__UINT64 Read( ON__UINT64 size, <span class="keywordtype">void</span>* buffer );</div>
<div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160; </div>
<div class="line"><a name="l00432"></a><span class="lineno">  432</span>&#160;  <span class="keyword">enum</span></div>
<div class="line"><a name="l00433"></a><span class="lineno">  433</span>&#160;  {</div>
<div class="line"><a name="l00434"></a><span class="lineno">  434</span>&#160;    seek_from_beginning_of_file = 0,</div>
<div class="line"><a name="l00435"></a><span class="lineno">  435</span>&#160;    seek_from_current_position = 1,</div>
<div class="line"><a name="l00436"></a><span class="lineno">  436</span>&#160;    seek_from_end_of_file = 2</div>
<div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;  };</div>
<div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160; </div>
<div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00442"></a><span class="lineno">  442</span>&#160;<span class="comment">      number of bytes to seek from origin</span></div>
<div class="line"><a name="l00443"></a><span class="lineno">  443</span>&#160;<span class="comment">    origin - [in]</span></div>
<div class="line"><a name="l00444"></a><span class="lineno">  444</span>&#160;<span class="comment">      initial position.</span></div>
<div class="line"><a name="l00445"></a><span class="lineno">  445</span>&#160;<span class="comment">        0 (SEEK_SET) Seek from beginning of file.</span></div>
<div class="line"><a name="l00446"></a><span class="lineno">  446</span>&#160;<span class="comment">        1 (SEEK_CUR) Seek from current position.</span></div>
<div class="line"><a name="l00447"></a><span class="lineno">  447</span>&#160;<span class="comment">        2 (SEEK_END) Seek from end of file.</span></div>
<div class="line"><a name="l00448"></a><span class="lineno">  448</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00449"></a><span class="lineno">  449</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00450"></a><span class="lineno">  450</span>&#160;<span class="comment">    False if the seek would result in a file position</span></div>
<div class="line"><a name="l00451"></a><span class="lineno">  451</span>&#160;<span class="comment">    before the beginning of the file. If false is</span></div>
<div class="line"><a name="l00452"></a><span class="lineno">  452</span>&#160;<span class="comment">    returned, the current position is not changed.</span></div>
<div class="line"><a name="l00453"></a><span class="lineno">  453</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00454"></a><span class="lineno">  454</span>&#160;<span class="comment">    Seeking beyond the end of the buffer is succeeds.</span></div>
<div class="line"><a name="l00455"></a><span class="lineno">  455</span>&#160;<span class="comment">    Seeking before the beginning of the buffer fails.</span></div>
<div class="line"><a name="l00456"></a><span class="lineno">  456</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00457"></a><span class="lineno">  457</span>&#160;  <span class="keywordtype">bool</span> Seek( </div>
<div class="line"><a name="l00458"></a><span class="lineno">  458</span>&#160;    ON__INT64 offset, </div>
<div class="line"><a name="l00459"></a><span class="lineno">  459</span>&#160;    <span class="keywordtype">int</span> origin </div>
<div class="line"><a name="l00460"></a><span class="lineno">  460</span>&#160;    );</div>
<div class="line"><a name="l00461"></a><span class="lineno">  461</span>&#160; </div>
<div class="line"><a name="l00462"></a><span class="lineno">  462</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00463"></a><span class="lineno">  463</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00464"></a><span class="lineno">  464</span>&#160;<span class="comment">    offset - [in] (&gt;= 0)</span></div>
<div class="line"><a name="l00465"></a><span class="lineno">  465</span>&#160;<span class="comment">      number of bytes to seek from the start of the buffer.</span></div>
<div class="line"><a name="l00466"></a><span class="lineno">  466</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00467"></a><span class="lineno">  467</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00468"></a><span class="lineno">  468</span>&#160;<span class="comment">    False if the seek would result in a file position</span></div>
<div class="line"><a name="l00469"></a><span class="lineno">  469</span>&#160;<span class="comment">    before the beginning of the file. If false is</span></div>
<div class="line"><a name="l00470"></a><span class="lineno">  470</span>&#160;<span class="comment">    returned, the current position is not changed.</span></div>
<div class="line"><a name="l00471"></a><span class="lineno">  471</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00472"></a><span class="lineno">  472</span>&#160;<span class="comment">    Seeking beyond the end of the buffer is succeeds.</span></div>
<div class="line"><a name="l00473"></a><span class="lineno">  473</span>&#160;<span class="comment">    Seeking before the beginning of the buffer fails.</span></div>
<div class="line"><a name="l00474"></a><span class="lineno">  474</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00475"></a><span class="lineno">  475</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart( ON__INT64 offset ); </div>
<div class="line"><a name="l00476"></a><span class="lineno">  476</span>&#160; </div>
<div class="line"><a name="l00477"></a><span class="lineno">  477</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00478"></a><span class="lineno">  478</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00479"></a><span class="lineno">  479</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00480"></a><span class="lineno">  480</span>&#160;<span class="comment">      number of bytes to seek from the current position.</span></div>
<div class="line"><a name="l00481"></a><span class="lineno">  481</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00482"></a><span class="lineno">  482</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00483"></a><span class="lineno">  483</span>&#160;<span class="comment">    False if the seek would result in a file position</span></div>
<div class="line"><a name="l00484"></a><span class="lineno">  484</span>&#160;<span class="comment">    before the beginning of the file. If false is</span></div>
<div class="line"><a name="l00485"></a><span class="lineno">  485</span>&#160;<span class="comment">    returned, the current position is not changed.</span></div>
<div class="line"><a name="l00486"></a><span class="lineno">  486</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00487"></a><span class="lineno">  487</span>&#160;<span class="comment">    Seeking beyond the end of the buffer is succeeds.</span></div>
<div class="line"><a name="l00488"></a><span class="lineno">  488</span>&#160;<span class="comment">    Seeking before the beginning of the buffer fails.</span></div>
<div class="line"><a name="l00489"></a><span class="lineno">  489</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00490"></a><span class="lineno">  490</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition( ON__INT64 offset ); </div>
<div class="line"><a name="l00491"></a><span class="lineno">  491</span>&#160; </div>
<div class="line"><a name="l00492"></a><span class="lineno">  492</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00493"></a><span class="lineno">  493</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00494"></a><span class="lineno">  494</span>&#160;<span class="comment">    offset - [in]</span></div>
<div class="line"><a name="l00495"></a><span class="lineno">  495</span>&#160;<span class="comment">      number of bytes to seek from the end fo the buffer.</span></div>
<div class="line"><a name="l00496"></a><span class="lineno">  496</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00497"></a><span class="lineno">  497</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l00498"></a><span class="lineno">  498</span>&#160;<span class="comment">    False if the seek would result in a file position</span></div>
<div class="line"><a name="l00499"></a><span class="lineno">  499</span>&#160;<span class="comment">    before the beginning of the file. If false is</span></div>
<div class="line"><a name="l00500"></a><span class="lineno">  500</span>&#160;<span class="comment">    returned, the current position is not changed.</span></div>
<div class="line"><a name="l00501"></a><span class="lineno">  501</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00502"></a><span class="lineno">  502</span>&#160;<span class="comment">    Seeking beyond the end of the buffer is succeeds.</span></div>
<div class="line"><a name="l00503"></a><span class="lineno">  503</span>&#160;<span class="comment">    Seeking before the beginning of the buffer fails.</span></div>
<div class="line"><a name="l00504"></a><span class="lineno">  504</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00505"></a><span class="lineno">  505</span>&#160;  <span class="keywordtype">bool</span> SeekFromEnd( ON__INT64 offset ); </div>
<div class="line"><a name="l00506"></a><span class="lineno">  506</span>&#160; </div>
<div class="line"><a name="l00507"></a><span class="lineno">  507</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00508"></a><span class="lineno">  508</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00509"></a><span class="lineno">  509</span>&#160;<span class="comment">    buffer_size - [in]</span></div>
<div class="line"><a name="l00510"></a><span class="lineno">  510</span>&#160;<span class="comment">      new size of buffer.</span></div>
<div class="line"><a name="l00511"></a><span class="lineno">  511</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00512"></a><span class="lineno">  512</span>&#160;<span class="comment">    True if successful.    </span></div>
<div class="line"><a name="l00513"></a><span class="lineno">  513</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00514"></a><span class="lineno">  514</span>&#160;<span class="comment">    The current position is not changed and may be beyond the</span></div>
<div class="line"><a name="l00515"></a><span class="lineno">  515</span>&#160;<span class="comment">    end of the file. Use Seek to set the current position after</span></div>
<div class="line"><a name="l00516"></a><span class="lineno">  516</span>&#160;<span class="comment">    calling ChangeSize().</span></div>
<div class="line"><a name="l00517"></a><span class="lineno">  517</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00518"></a><span class="lineno">  518</span>&#160;  <span class="keywordtype">bool</span> ChangeSize( ON__UINT64 buffer_size );</div>
<div class="line"><a name="l00519"></a><span class="lineno">  519</span>&#160; </div>
<div class="line"><a name="l00520"></a><span class="lineno">  520</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00521"></a><span class="lineno">  521</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00522"></a><span class="lineno">  522</span>&#160;<span class="comment">    Return unused memory to heap.</span></div>
<div class="line"><a name="l00523"></a><span class="lineno">  523</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00524"></a><span class="lineno">  524</span>&#160;<span class="comment">    Call this function after creating an ON_Buffer that will persist for</span></div>
<div class="line"><a name="l00525"></a><span class="lineno">  525</span>&#160;<span class="comment">    and extended amount of time. There are never more than 16 pages of</span></div>
<div class="line"><a name="l00526"></a><span class="lineno">  526</span>&#160;<span class="comment">    unsued memory (16*4096 bytes on most computers) in an ON_Buffer.</span></div>
<div class="line"><a name="l00527"></a><span class="lineno">  527</span>&#160;<span class="comment">    Compact() can be called at any time, but calling Compact() the then</span></div>
<div class="line"><a name="l00528"></a><span class="lineno">  528</span>&#160;<span class="comment">    writing at the end of the buffer is not an efficient use of time</span></div>
<div class="line"><a name="l00529"></a><span class="lineno">  529</span>&#160;<span class="comment">    or memory.</span></div>
<div class="line"><a name="l00530"></a><span class="lineno">  530</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00531"></a><span class="lineno">  531</span>&#160;  <span class="keywordtype">bool</span> Compact();</div>
<div class="line"><a name="l00532"></a><span class="lineno">  532</span>&#160; </div>
<div class="line"><a name="l00533"></a><span class="lineno">  533</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00534"></a><span class="lineno">  534</span>&#160;<span class="comment">  Returns</span></div>
<div class="line"><a name="l00535"></a><span class="lineno">  535</span>&#160;<span class="comment">    True if the ON_Buffer is valid.</span></div>
<div class="line"><a name="l00536"></a><span class="lineno">  536</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00537"></a><span class="lineno">  537</span>&#160;  <span class="keywordtype">bool</span> IsValid( <span class="keyword">const</span> <a class="code" href="class_o_n___text_log.html">ON_TextLog</a>* text_log ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00538"></a><span class="lineno">  538</span>&#160; </div>
<div class="line"><a name="l00539"></a><span class="lineno">  539</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00540"></a><span class="lineno">  540</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00541"></a><span class="lineno">  541</span>&#160;<span class="comment">    Value that identifies most recent error.</span></div>
<div class="line"><a name="l00542"></a><span class="lineno">  542</span>&#160;<span class="comment">    0: no error</span></div>
<div class="line"><a name="l00543"></a><span class="lineno">  543</span>&#160;<span class="comment">    1: attempt to seek to a negative position</span></div>
<div class="line"><a name="l00544"></a><span class="lineno">  544</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00545"></a><span class="lineno">  545</span>&#160;  ON__UINT32 LastError() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00546"></a><span class="lineno">  546</span>&#160;  </div>
<div class="line"><a name="l00547"></a><span class="lineno">  547</span>&#160;  <span class="keywordtype">void</span> ClearLastError();</div>
<div class="line"><a name="l00548"></a><span class="lineno">  548</span>&#160; </div>
<div class="line"><a name="l00549"></a><span class="lineno">  549</span>&#160;  ON_Buffer_ErrorHandler ErrorHandler() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00550"></a><span class="lineno">  550</span>&#160;  </div>
<div class="line"><a name="l00551"></a><span class="lineno">  551</span>&#160;  <span class="keywordtype">void</span> SetErrorHandler(ON_Buffer_ErrorHandler error_handler);</div>
<div class="line"><a name="l00552"></a><span class="lineno">  552</span>&#160; </div>
<div class="line"><a name="l00553"></a><span class="lineno">  553</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00554"></a><span class="lineno">  554</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00555"></a><span class="lineno">  555</span>&#160;<span class="comment">    Use WriteToBinaryArchive() to save an entire ON_Buffer inside</span></div>
<div class="line"><a name="l00556"></a><span class="lineno">  556</span>&#160;<span class="comment">    a binary archive.  Use ReadFromBinaryArchive() to retrieve</span></div>
<div class="line"><a name="l00557"></a><span class="lineno">  557</span>&#160;<span class="comment">    the ON_Buffer from the ON_BinaryArchive.</span></div>
<div class="line"><a name="l00558"></a><span class="lineno">  558</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00559"></a><span class="lineno">  559</span>&#160;  <span class="keywordtype">bool</span> WriteToBinaryArchive( <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00560"></a><span class="lineno">  560</span>&#160; </div>
<div class="line"><a name="l00561"></a><span class="lineno">  561</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00562"></a><span class="lineno">  562</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00563"></a><span class="lineno">  563</span>&#160;<span class="comment">    Use ReadFromBinaryArchive() to retrieve an entire ON_Buffer</span></div>
<div class="line"><a name="l00564"></a><span class="lineno">  564</span>&#160;<span class="comment">    that was written using WriteToBinaryArchive().</span></div>
<div class="line"><a name="l00565"></a><span class="lineno">  565</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00566"></a><span class="lineno">  566</span>&#160;  <span class="keywordtype">bool</span> ReadFromBinaryArchive( <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; );</div>
<div class="line"><a name="l00567"></a><span class="lineno">  567</span>&#160; </div>
<div class="line"><a name="l00568"></a><span class="lineno">  568</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00569"></a><span class="lineno">  569</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00570"></a><span class="lineno">  570</span>&#160;<span class="comment">    Compress this buffer</span></div>
<div class="line"><a name="l00571"></a><span class="lineno">  571</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00572"></a><span class="lineno">  572</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00573"></a><span class="lineno">  573</span>&#160;<span class="comment">    compressed_buffer - [out]</span></div>
<div class="line"><a name="l00574"></a><span class="lineno">  574</span>&#160;<span class="comment">      (The reference can be *this)</span></div>
<div class="line"><a name="l00575"></a><span class="lineno">  575</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l00576"></a><span class="lineno">  576</span>&#160;<span class="comment">  Example:</span></div>
<div class="line"><a name="l00577"></a><span class="lineno">  577</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00578"></a><span class="lineno">  578</span>&#160;<span class="comment">        // compress a buffer in place</span></div>
<div class="line"><a name="l00579"></a><span class="lineno">  579</span>&#160;<span class="comment">        ON_Buffer buffer;</span></div>
<div class="line"><a name="l00580"></a><span class="lineno">  580</span>&#160;<span class="comment">        buffer = ...;</span></div>
<div class="line"><a name="l00581"></a><span class="lineno">  581</span>&#160;<span class="comment">        if ( !buffer.Compress(buffer) )</span></div>
<div class="line"><a name="l00582"></a><span class="lineno">  582</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00583"></a><span class="lineno">  583</span>&#160;<span class="comment">           // compression failed</span></div>
<div class="line"><a name="l00584"></a><span class="lineno">  584</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00585"></a><span class="lineno">  585</span>&#160;<span class="comment">        else</span></div>
<div class="line"><a name="l00586"></a><span class="lineno">  586</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00587"></a><span class="lineno">  587</span>&#160;<span class="comment">           // buffer is now compressed</span></div>
<div class="line"><a name="l00588"></a><span class="lineno">  588</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00589"></a><span class="lineno">  589</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00590"></a><span class="lineno">  590</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00591"></a><span class="lineno">  591</span>&#160;<span class="comment">    True if successful.  False if failed.</span></div>
<div class="line"><a name="l00592"></a><span class="lineno">  592</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00593"></a><span class="lineno">  593</span>&#160;  <span class="keywordtype">bool</span> Compress( <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; compressed_buffer ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00594"></a><span class="lineno">  594</span>&#160; </div>
<div class="line"><a name="l00595"></a><span class="lineno">  595</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00596"></a><span class="lineno">  596</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00597"></a><span class="lineno">  597</span>&#160;<span class="comment">    Uncompress this buffer which must have been compressed using</span></div>
<div class="line"><a name="l00598"></a><span class="lineno">  598</span>&#160;<span class="comment">    ON_Buffer::Compress().</span></div>
<div class="line"><a name="l00599"></a><span class="lineno">  599</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00600"></a><span class="lineno">  600</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00601"></a><span class="lineno">  601</span>&#160;<span class="comment">    uncompressed_buffer - [out]</span></div>
<div class="line"><a name="l00602"></a><span class="lineno">  602</span>&#160;<span class="comment">      (The reference can be *this)</span></div>
<div class="line"><a name="l00603"></a><span class="lineno">  603</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00604"></a><span class="lineno">  604</span>&#160;<span class="comment">  Example:</span></div>
<div class="line"><a name="l00605"></a><span class="lineno">  605</span>&#160;<span class="comment">        // silly example that compresses and then uncompresses a buffer in place</span></div>
<div class="line"><a name="l00606"></a><span class="lineno">  606</span>&#160;<span class="comment">        // to show how to call the functions.</span></div>
<div class="line"><a name="l00607"></a><span class="lineno">  607</span>&#160;<span class="comment">        ON_Buffer buffer;</span></div>
<div class="line"><a name="l00608"></a><span class="lineno">  608</span>&#160;<span class="comment">        buffer = ...; // buffer is in it uncompressed form</span></div>
<div class="line"><a name="l00609"></a><span class="lineno">  609</span>&#160;<span class="comment">        if ( buffer.Compress(buffer) )</span></div>
<div class="line"><a name="l00610"></a><span class="lineno">  610</span>&#160;<span class="comment">        {</span></div>
<div class="line"><a name="l00611"></a><span class="lineno">  611</span>&#160;<span class="comment">           // buffer is now compressed</span></div>
<div class="line"><a name="l00612"></a><span class="lineno">  612</span>&#160;<span class="comment">           if ( buffer.Uncompress(buffer) )</span></div>
<div class="line"><a name="l00613"></a><span class="lineno">  613</span>&#160;<span class="comment">           {</span></div>
<div class="line"><a name="l00614"></a><span class="lineno">  614</span>&#160;<span class="comment">              // buffer is uncompressed again.</span></div>
<div class="line"><a name="l00615"></a><span class="lineno">  615</span>&#160;<span class="comment">           }</span></div>
<div class="line"><a name="l00616"></a><span class="lineno">  616</span>&#160;<span class="comment">        }</span></div>
<div class="line"><a name="l00617"></a><span class="lineno">  617</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00618"></a><span class="lineno">  618</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00619"></a><span class="lineno">  619</span>&#160;<span class="comment">    True if successful.  False if failed.</span></div>
<div class="line"><a name="l00620"></a><span class="lineno">  620</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00621"></a><span class="lineno">  621</span>&#160;  <span class="keywordtype">bool</span> Uncompress( <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; uncompressed_buffer ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00622"></a><span class="lineno">  622</span>&#160; </div>
<div class="line"><a name="l00623"></a><span class="lineno">  623</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00624"></a><span class="lineno">  624</span>&#160; </div>
<div class="line"><a name="l00625"></a><span class="lineno">  625</span>&#160;  ON__UINT64 m_buffer_size; <span class="comment">// total number of bytes in the buffer</span></div>
<div class="line"><a name="l00626"></a><span class="lineno">  626</span>&#160;  ON__UINT64 m_current_position;</div>
<div class="line"><a name="l00627"></a><span class="lineno">  627</span>&#160; </div>
<div class="line"><a name="l00628"></a><span class="lineno">  628</span>&#160;  <span class="keyword">struct </span>ON_BUFFER_SEGMENT* m_first_segment;</div>
<div class="line"><a name="l00629"></a><span class="lineno">  629</span>&#160;  <span class="keyword">struct </span>ON_BUFFER_SEGMENT* m_last_segment;</div>
<div class="line"><a name="l00630"></a><span class="lineno">  630</span>&#160;  <span class="keyword">struct </span>ON_BUFFER_SEGMENT* m_current_segment;</div>
<div class="line"><a name="l00631"></a><span class="lineno">  631</span>&#160;  <span class="keywordtype">bool</span> SetCurrentSegment(<span class="keywordtype">bool</span>);</div>
<div class="line"><a name="l00632"></a><span class="lineno">  632</span>&#160;  <span class="keywordtype">void</span> Copy( <span class="keyword">const</span> <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>&amp; );</div>
<div class="line"><a name="l00633"></a><span class="lineno">  633</span>&#160; </div>
<div class="line"><a name="l00634"></a><span class="lineno">  634</span>&#160;  ON_MEMORY_POOL* m_heap;</div>
<div class="line"><a name="l00635"></a><span class="lineno">  635</span>&#160;  ON_Buffer_ErrorHandler m_error_handler;</div>
<div class="line"><a name="l00636"></a><span class="lineno">  636</span>&#160; </div>
<div class="line"><a name="l00637"></a><span class="lineno">  637</span>&#160;  ON__UINT32 m_last_error;</div>
<div class="line"><a name="l00638"></a><span class="lineno">  638</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> m_reserved[12];</div>
<div class="line"><a name="l00639"></a><span class="lineno">  639</span>&#160;};</div>
<div class="line"><a name="l00640"></a><span class="lineno">  640</span>&#160; </div>
<div class="line"><a name="l00642"></a><span class="lineno">  642</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00643"></a><span class="lineno">  643</span>&#160;<span class="comment">// ON_BinaryArchive </span></div>
<div class="line"><a name="l00644"></a><span class="lineno">  644</span>&#160;<span class="comment">//      virtual class for CPU independent serialization</span></div>
<div class="line"><a name="l00645"></a><span class="lineno">  645</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00646"></a><span class="lineno">  646</span>&#160;<span class="comment">// ON_BinaryFile</span></div>
<div class="line"><a name="l00647"></a><span class="lineno">  647</span>&#160;<span class="comment">//      simple class for CPU independent binary file I/O</span></div>
<div class="line"><a name="l00648"></a><span class="lineno">  648</span>&#160;<span class="comment">//      includes optional CRC support</span></div>
<div class="line"><a name="l00649"></a><span class="lineno">  649</span>&#160;<span class="comment">//</span></div>
<div class="line"><a name="l00650"></a><span class="lineno">  650</span>&#160; </div>
<div class="line"><a name="l00651"></a><span class="lineno">  651</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___object.html">ON_Object</a>;</div>
<div class="line"><a name="l00652"></a><span class="lineno">  652</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___group.html">ON_Group</a>;</div>
<div class="line"><a name="l00653"></a><span class="lineno">  653</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___font.html">ON_Font</a>;</div>
<div class="line"><a name="l00654"></a><span class="lineno">  654</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___dim_style.html">ON_DimStyle</a>;</div>
<div class="line"><a name="l00655"></a><span class="lineno">  655</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___arc.html">ON_Arc</a>;</div>
<div class="line"><a name="l00656"></a><span class="lineno">  656</span>&#160;<span class="keyword">class </span>ON_ObjectAttributes;</div>
<div class="line"><a name="l00657"></a><span class="lineno">  657</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___instance_definition.html">ON_InstanceDefinition</a>;</div>
<div class="line"><a name="l00658"></a><span class="lineno">  658</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___hatch_pattern.html">ON_HatchPattern</a>;</div>
<div class="line"><a name="l00659"></a><span class="lineno">  659</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___linetype.html">ON_Linetype</a>;</div>
<div class="line"><a name="l00660"></a><span class="lineno">  660</span>&#160; </div>
<div class="line"><a name="l00661"></a><span class="lineno"><a class="line" href="struct_o_n__3_d_m___c_h_u_n_k.html">  661</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_o_n__3_d_m___c_h_u_n_k.html">ON_3DM_CHUNK</a></div>
<div class="line"><a name="l00662"></a><span class="lineno">  662</span>&#160;{</div>
<div class="line"><a name="l00663"></a><span class="lineno">  663</span>&#160;  <span class="keywordtype">size_t</span> m_offset; <span class="comment">// In read or write_using_fseek mode, this is the</span></div>
<div class="line"><a name="l00664"></a><span class="lineno">  664</span>&#160;                   <span class="comment">// file position of first byte after chunk&#39;s length.</span></div>
<div class="line"><a name="l00665"></a><span class="lineno">  665</span>&#160;                   <span class="comment">// In write_using_buffer mode, this of the m_buffer[]</span></div>
<div class="line"><a name="l00666"></a><span class="lineno">  666</span>&#160;                   <span class="comment">// position of first byte after chunk&#39;s length.</span></div>
<div class="line"><a name="l00667"></a><span class="lineno">  667</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_typecode;</div>
<div class="line"><a name="l00668"></a><span class="lineno">  668</span>&#160;  <span class="keywordtype">int</span> m_value;</div>
<div class="line"><a name="l00669"></a><span class="lineno">  669</span>&#160;  <span class="keywordtype">int</span> m_do_length; <span class="comment">// true if chunk is a long chunk with length</span></div>
<div class="line"><a name="l00670"></a><span class="lineno">  670</span>&#160;  ON__UINT16 m_do_crc16; <span class="comment">// 16 bit CRC using CCITT polynomial</span></div>
<div class="line"><a name="l00671"></a><span class="lineno">  671</span>&#160;  ON__UINT16 m_crc16;</div>
<div class="line"><a name="l00672"></a><span class="lineno">  672</span>&#160;  ON__UINT32 m_do_crc32; <span class="comment">// 32 bit CRC</span></div>
<div class="line"><a name="l00673"></a><span class="lineno">  673</span>&#160;  ON__UINT32 m_crc32;</div>
<div class="line"><a name="l00674"></a><span class="lineno">  674</span>&#160;};</div>
<div class="line"><a name="l00675"></a><span class="lineno">  675</span>&#160; </div>
<div class="line"><a name="l00676"></a><span class="lineno"><a class="line" href="struct_o_n__3_d_m___b_i_g___c_h_u_n_k.html">  676</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_o_n__3_d_m___b_i_g___c_h_u_n_k.html">ON_3DM_BIG_CHUNK</a></div>
<div class="line"><a name="l00677"></a><span class="lineno">  677</span>&#160;{</div>
<div class="line"><a name="l00678"></a><span class="lineno">  678</span>&#160;  ON__UINT64 m_big_offset; <span class="comment">// In read or write_using_fseek mode, this is the</span></div>
<div class="line"><a name="l00679"></a><span class="lineno">  679</span>&#160;                           <span class="comment">// file position of first byte after chunk&#39;s length.</span></div>
<div class="line"><a name="l00680"></a><span class="lineno">  680</span>&#160;                           <span class="comment">// In write_using_buffer mode, this of the m_buffer[]</span></div>
<div class="line"><a name="l00681"></a><span class="lineno">  681</span>&#160;                           <span class="comment">// position of first byte after chunk&#39;s length.</span></div>
<div class="line"><a name="l00682"></a><span class="lineno">  682</span>&#160; </div>
<div class="line"><a name="l00683"></a><span class="lineno">  683</span>&#160;  ON__UINT64 Length() <span class="keyword">const</span>; <span class="comment">// 0 for short chunks</span></div>
<div class="line"><a name="l00684"></a><span class="lineno">  684</span>&#160; </div>
<div class="line"><a name="l00685"></a><span class="lineno">  685</span>&#160;  ON__INT64 m_big_value;</div>
<div class="line"><a name="l00686"></a><span class="lineno">  686</span>&#160;  ON__UINT32 m_typecode;</div>
<div class="line"><a name="l00687"></a><span class="lineno">  687</span>&#160; </div>
<div class="line"><a name="l00688"></a><span class="lineno">  688</span>&#160;  ON__UINT8 m_bLongChunk; <span class="comment">// true if chunk is a long chunk and m_big_value is a length.</span></div>
<div class="line"><a name="l00689"></a><span class="lineno">  689</span>&#160;  ON__UINT8 m_reserved1;</div>
<div class="line"><a name="l00690"></a><span class="lineno">  690</span>&#160;  ON__UINT8 m_reserved2;</div>
<div class="line"><a name="l00691"></a><span class="lineno">  691</span>&#160;  ON__UINT8 m_reserved3;</div>
<div class="line"><a name="l00692"></a><span class="lineno">  692</span>&#160; </div>
<div class="line"><a name="l00693"></a><span class="lineno">  693</span>&#160;  <span class="comment">// CRC settings</span></div>
<div class="line"><a name="l00694"></a><span class="lineno">  694</span>&#160;  ON__UINT8 m_do_crc16; <span class="comment">// true (1) if we are calculating 16 bit CRC</span></div>
<div class="line"><a name="l00695"></a><span class="lineno">  695</span>&#160;  ON__UINT8 m_do_crc32; <span class="comment">// true (1) if we are calculating 32 bit CRC</span></div>
<div class="line"><a name="l00696"></a><span class="lineno">  696</span>&#160;  ON__UINT16 m_crc16; <span class="comment">// current 16 bit CRC value</span></div>
<div class="line"><a name="l00697"></a><span class="lineno">  697</span>&#160;  ON__UINT32 m_crc32; <span class="comment">// current 32 bit CRC value</span></div>
<div class="line"><a name="l00698"></a><span class="lineno">  698</span>&#160;};</div>
<div class="line"><a name="l00699"></a><span class="lineno">  699</span>&#160; </div>
<div class="line"><a name="l00700"></a><span class="lineno">  700</span>&#160;<span class="keywordtype">bool</span> ON_IsLongChunkTypecode(ON__UINT32 typecode);</div>
<div class="line"><a name="l00701"></a><span class="lineno">  701</span>&#160; </div>
<div class="line"><a name="l00702"></a><span class="lineno">  702</span>&#160;<span class="keywordtype">bool</span> ON_IsShortChunkTypecode(ON__UINT32 typecode);</div>
<div class="line"><a name="l00703"></a><span class="lineno">  703</span>&#160; </div>
<div class="line"><a name="l00704"></a><span class="lineno">  704</span>&#160;<span class="preprocessor">#if defined(ON_DLL_TEMPLATE)</span></div>
<div class="line"><a name="l00705"></a><span class="lineno">  705</span>&#160;<span class="comment">// This stuff is here because of a limitation in the way Microsoft</span></div>
<div class="line"><a name="l00706"></a><span class="lineno">  706</span>&#160;<span class="comment">// handles templates and DLLs.  See Microsoft&#39;s knowledge base </span></div>
<div class="line"><a name="l00707"></a><span class="lineno">  707</span>&#160;<span class="comment">// article ID Q168958 for details.</span></div>
<div class="line"><a name="l00708"></a><span class="lineno">  708</span>&#160;<span class="preprocessor">#pragma warning( push )</span></div>
<div class="line"><a name="l00709"></a><span class="lineno">  709</span>&#160;<span class="preprocessor">#pragma warning( disable : 4231 )</span></div>
<div class="line"><a name="l00710"></a><span class="lineno">  710</span>&#160;ON_DLL_TEMPLATE <span class="keyword">template</span> <span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3DM_CHUNK&gt;</a>;</div>
<div class="line"><a name="l00711"></a><span class="lineno">  711</span>&#160;ON_DLL_TEMPLATE <span class="keyword">template</span> <span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3DM_BIG_CHUNK&gt;</a>;</div>
<div class="line"><a name="l00712"></a><span class="lineno">  712</span>&#160;<span class="preprocessor">#pragma warning( pop )</span></div>
<div class="line"><a name="l00713"></a><span class="lineno">  713</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00714"></a><span class="lineno">  714</span>&#160; </div>
<div class="line"><a name="l00715"></a><span class="lineno">  715</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___light.html">ON_Light</a>;</div>
<div class="line"><a name="l00716"></a><span class="lineno">  716</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___bitmap.html">ON_Bitmap</a>;</div>
<div class="line"><a name="l00717"></a><span class="lineno">  717</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___texture_mapping.html">ON_TextureMapping</a>;</div>
<div class="line"><a name="l00718"></a><span class="lineno">  718</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___material.html">ON_Material</a>;</div>
<div class="line"><a name="l00719"></a><span class="lineno">  719</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___layer.html">ON_Layer</a>;</div>
<div class="line"><a name="l00720"></a><span class="lineno">  720</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n__3dm_properties.html">ON_3dmProperties</a>;</div>
<div class="line"><a name="l00721"></a><span class="lineno">  721</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n__3dm_settings.html">ON_3dmSettings</a>;</div>
<div class="line"><a name="l00722"></a><span class="lineno">  722</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>;</div>
<div class="line"><a name="l00723"></a><span class="lineno">  723</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>;</div>
<div class="line"><a name="l00724"></a><span class="lineno">  724</span>&#160; </div>
<div class="line"><a name="l00725"></a><span class="lineno">  725</span>&#160;<span class="keyword">class </span><a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>;</div>
<div class="line"><a name="l00726"></a><span class="lineno">  726</span>&#160; </div>
<div class="line"><a name="l00727"></a><span class="lineno">  727</span>&#160;<span class="comment">// Used int ON_3dmProperties::Read() to set ON_BinaryArchive.m_3dm_opennurbs_version</span></div>
<div class="line"><a name="l00728"></a><span class="lineno">  728</span>&#160;<span class="comment">// Do not call directly. </span></div>
<div class="line"><a name="l00729"></a><span class="lineno">  729</span>&#160;<span class="keywordtype">void</span> ON_SetBinaryArchiveOpenNURBSVersion(<a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp;,<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l00730"></a><span class="lineno">  730</span>&#160; </div>
<div class="line"><a name="l00731"></a><span class="lineno"><a class="line" href="class_o_n___binary_archive.html">  731</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a> <span class="comment">// use for generic serialization of binary data</span></div>
<div class="line"><a name="l00732"></a><span class="lineno">  732</span>&#160;{</div>
<div class="line"><a name="l00733"></a><span class="lineno">  733</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00734"></a><span class="lineno">  734</span>&#160;  <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>( ON::archive_mode );</div>
<div class="line"><a name="l00735"></a><span class="lineno">  735</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>();</div>
<div class="line"><a name="l00736"></a><span class="lineno">  736</span>&#160; </div>
<div class="line"><a name="l00737"></a><span class="lineno">  737</span>&#160;  <span class="keyword">virtual</span> </div>
<div class="line"><a name="l00738"></a><span class="lineno">  738</span>&#160;  <span class="keywordtype">size_t</span> CurrentPosition( <span class="comment">// current offset (in bytes) into archive ( like ftell() )</span></div>
<div class="line"><a name="l00739"></a><span class="lineno">  739</span>&#160;                ) <span class="keyword">const</span> = 0; </div>
<div class="line"><a name="l00740"></a><span class="lineno">  740</span>&#160;  <span class="keyword">virtual</span> </div>
<div class="line"><a name="l00741"></a><span class="lineno">  741</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition( <span class="comment">// seek from current position ( like fseek( ,SEEK_CUR) )</span></div>
<div class="line"><a name="l00742"></a><span class="lineno">  742</span>&#160;                <span class="keywordtype">int</span> <span class="comment">// byte offset ( &gt;= -CurrentPostion() )</span></div>
<div class="line"><a name="l00743"></a><span class="lineno">  743</span>&#160;                ) = 0; </div>
<div class="line"><a name="l00744"></a><span class="lineno">  744</span>&#160;  <span class="keyword">virtual</span> </div>
<div class="line"><a name="l00745"></a><span class="lineno">  745</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart(  <span class="comment">// seek from current position ( like fseek( ,SEEK_SET) )</span></div>
<div class="line"><a name="l00746"></a><span class="lineno">  746</span>&#160;                <span class="keywordtype">size_t</span> <span class="comment">// byte offset ( &gt;= 0 )</span></div>
<div class="line"><a name="l00747"></a><span class="lineno">  747</span>&#160;                ) = 0;</div>
<div class="line"><a name="l00748"></a><span class="lineno">  748</span>&#160;  <span class="keyword">virtual</span> </div>
<div class="line"><a name="l00749"></a><span class="lineno">  749</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span> = 0; <span class="comment">// true if at end of file</span></div>
<div class="line"><a name="l00750"></a><span class="lineno">  750</span>&#160; </div>
<div class="line"><a name="l00751"></a><span class="lineno">  751</span>&#160;  <span class="keywordtype">bool</span> BigSeekFromStart( ON__UINT64 offset );</div>
<div class="line"><a name="l00752"></a><span class="lineno">  752</span>&#160;  <span class="keywordtype">bool</span> BigSeekForward( ON__UINT64 offset );</div>
<div class="line"><a name="l00753"></a><span class="lineno">  753</span>&#160;  <span class="keywordtype">bool</span> BigSeekBackward( ON__UINT64 offset );</div>
<div class="line"><a name="l00754"></a><span class="lineno">  754</span>&#160;  <span class="keywordtype">bool</span> BigSeekFromCurrentPosition( ON__INT64 offset );</div>
<div class="line"><a name="l00755"></a><span class="lineno">  755</span>&#160; </div>
<div class="line"><a name="l00756"></a><span class="lineno">  756</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00757"></a><span class="lineno">  757</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00758"></a><span class="lineno">  758</span>&#160;<span class="comment">    Tool for swapping bytes when doing I/O on</span></div>
<div class="line"><a name="l00759"></a><span class="lineno">  759</span>&#160;<span class="comment">    using big endian CPUs.</span></div>
<div class="line"><a name="l00760"></a><span class="lineno">  760</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00761"></a><span class="lineno">  761</span>&#160;<span class="comment">    3dm files are always saved with little endian byte order.</span></div>
<div class="line"><a name="l00762"></a><span class="lineno">  762</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l00763"></a><span class="lineno">  763</span>&#160;<span class="comment">    ON_BinaryArchive::Endian</span></div>
<div class="line"><a name="l00764"></a><span class="lineno">  764</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00765"></a><span class="lineno">  765</span>&#160;  <span class="keyword">static</span></div>
<div class="line"><a name="l00766"></a><span class="lineno">  766</span>&#160;  <span class="keywordtype">bool</span> ToggleByteOrder(</div>
<div class="line"><a name="l00767"></a><span class="lineno">  767</span>&#160;    <span class="keywordtype">int</span>, <span class="comment">// number of elements</span></div>
<div class="line"><a name="l00768"></a><span class="lineno">  768</span>&#160;    <span class="keywordtype">int</span>, <span class="comment">// size of element (2,4, or 8)</span></div>
<div class="line"><a name="l00769"></a><span class="lineno">  769</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">void</span>*,  <span class="comment">// source buffer</span></div>
<div class="line"><a name="l00770"></a><span class="lineno">  770</span>&#160;    <span class="keywordtype">void</span>*         <span class="comment">// destination buffer (can be same a source buffer)</span></div>
<div class="line"><a name="l00771"></a><span class="lineno">  771</span>&#160;    );</div>
<div class="line"><a name="l00772"></a><span class="lineno">  772</span>&#160; </div>
<div class="line"><a name="l00773"></a><span class="lineno">  773</span>&#160;  <span class="keyword">static</span></div>
<div class="line"><a name="l00774"></a><span class="lineno">  774</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">char</span>* TypecodeName( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tcode );</div>
<div class="line"><a name="l00775"></a><span class="lineno">  775</span>&#160; </div>
<div class="line"><a name="l00776"></a><span class="lineno">  776</span>&#160;  <span class="keyword">static</span></div>
<div class="line"><a name="l00777"></a><span class="lineno">  777</span>&#160;  <span class="keywordtype">char</span>* ON_TypecodeParse( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tcode, <span class="keywordtype">char</span>* typecode_name, <span class="keywordtype">size_t</span> max_length );</div>
<div class="line"><a name="l00778"></a><span class="lineno">  778</span>&#160; </div>
<div class="line"><a name="l00779"></a><span class="lineno">  779</span>&#160;  <span class="keywordtype">bool</span> ReadMode() <span class="keyword">const</span>;  <span class="comment">// true if reading is permitted</span></div>
<div class="line"><a name="l00780"></a><span class="lineno">  780</span>&#160;  <span class="keywordtype">bool</span> WriteMode() <span class="keyword">const</span>; <span class="comment">// true if writing is permitted</span></div>
<div class="line"><a name="l00781"></a><span class="lineno">  781</span>&#160;  </div>
<div class="line"><a name="l00782"></a><span class="lineno">  782</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00783"></a><span class="lineno">  783</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00784"></a><span class="lineno">  784</span>&#160;<span class="comment">     Endian-ness of the cpu reading this file.</span></div>
<div class="line"><a name="l00785"></a><span class="lineno">  785</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l00786"></a><span class="lineno">  786</span>&#160;<span class="comment">    3dm files are alwasy saved with little endian byte order.</span></div>
<div class="line"><a name="l00787"></a><span class="lineno">  787</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00788"></a><span class="lineno">  788</span>&#160;  ON::endian Endian() <span class="keyword">const</span>; <span class="comment">// endian-ness of cpu</span></div>
<div class="line"><a name="l00789"></a><span class="lineno">  789</span>&#160; </div>
<div class="line"><a name="l00790"></a><span class="lineno">  790</span>&#160;  <span class="keywordtype">int</span> BadCRCCount() <span class="keyword">const</span>; <span class="comment">// number of chunks read with bad CRC </span></div>
<div class="line"><a name="l00791"></a><span class="lineno">  791</span>&#160; </div>
<div class="line"><a name="l00792"></a><span class="lineno">  792</span>&#160;  <span class="keywordtype">bool</span> ReadByte( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* ); <span class="comment">// must fail if mode is not read or readwrite</span></div>
<div class="line"><a name="l00793"></a><span class="lineno">  793</span>&#160; </div>
<div class="line"><a name="l00794"></a><span class="lineno">  794</span>&#160;  <span class="keywordtype">bool</span> WriteByte( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* ); <span class="comment">// must fail if mode is not write or readwrite</span></div>
<div class="line"><a name="l00795"></a><span class="lineno">  795</span>&#160; </div>
<div class="line"><a name="l00796"></a><span class="lineno">  796</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00797"></a><span class="lineno">  797</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00798"></a><span class="lineno">  798</span>&#160;<span class="comment">    Expert user function that uses Read() to load a buffer.</span></div>
<div class="line"><a name="l00799"></a><span class="lineno">  799</span>&#160;<span class="comment">  Paramters:</span></div>
<div class="line"><a name="l00800"></a><span class="lineno">  800</span>&#160;<span class="comment">    sizeof_buffer - [in] number of bytes to attempt to read.</span></div>
<div class="line"><a name="l00801"></a><span class="lineno">  801</span>&#160;<span class="comment">    buffer - [out] read bytes are stored in this buffer</span></div>
<div class="line"><a name="l00802"></a><span class="lineno">  802</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00803"></a><span class="lineno">  803</span>&#160;<span class="comment">    Number of bytes actually read, which may be less than</span></div>
<div class="line"><a name="l00804"></a><span class="lineno">  804</span>&#160;<span class="comment">    sizeof_buffer if the end of file is encountered.</span></div>
<div class="line"><a name="l00805"></a><span class="lineno">  805</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00806"></a><span class="lineno">  806</span>&#160;  ON__UINT64 ReadBuffer( ON__UINT64 sizeof_buffer, <span class="keywordtype">void</span>* buffer );</div>
<div class="line"><a name="l00807"></a><span class="lineno">  807</span>&#160; </div>
<div class="line"><a name="l00808"></a><span class="lineno">  808</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00809"></a><span class="lineno">  809</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00810"></a><span class="lineno">  810</span>&#160;<span class="comment">    Expert user function to control CRC calculation while reading and writing.</span></div>
<div class="line"><a name="l00811"></a><span class="lineno">  811</span>&#160;<span class="comment">    Typically this is used when seeking around and reading/writing information</span></div>
<div class="line"><a name="l00812"></a><span class="lineno">  812</span>&#160;<span class="comment">    in non-serial order.</span></div>
<div class="line"><a name="l00813"></a><span class="lineno">  813</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00814"></a><span class="lineno">  814</span>&#160;<span class="comment">    bEnable  - [in]</span></div>
<div class="line"><a name="l00815"></a><span class="lineno">  815</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00816"></a><span class="lineno">  816</span>&#160;<span class="comment">    Current state of CRC calculation.  Use the returned value to restore the</span></div>
<div class="line"><a name="l00817"></a><span class="lineno">  817</span>&#160;<span class="comment">    CRC calculation setting after you are finished doing your fancy pants</span></div>
<div class="line"><a name="l00818"></a><span class="lineno">  818</span>&#160;<span class="comment">    expert IO.</span></div>
<div class="line"><a name="l00819"></a><span class="lineno">  819</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00820"></a><span class="lineno">  820</span>&#160;  <span class="keywordtype">bool</span> EnableCRCCalculation( <span class="keywordtype">bool</span> bEnable );</div>
<div class="line"><a name="l00821"></a><span class="lineno">  821</span>&#160; </div>
<div class="line"><a name="l00822"></a><span class="lineno">  822</span>&#160;  <span class="comment">// ReadCompressedBuffer()/WriteCompressedBuffer() use zlib 1.1.3</span></div>
<div class="line"><a name="l00823"></a><span class="lineno">  823</span>&#160;  <span class="comment">// to inflate/deflate the data buffer.</span></div>
<div class="line"><a name="l00824"></a><span class="lineno">  824</span>&#160;  <span class="comment">// Care must be used to get an endian independent file.  </span></div>
<div class="line"><a name="l00825"></a><span class="lineno">  825</span>&#160;  <span class="comment">// See ON_Mesh::Read()/ON_Mesh::Write() for an example of an endian</span></div>
<div class="line"><a name="l00826"></a><span class="lineno">  826</span>&#160;  <span class="comment">// independent use of compression. See also ToggleByteOrder() and Endian().</span></div>
<div class="line"><a name="l00827"></a><span class="lineno">  827</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00828"></a><span class="lineno">  828</span>&#160;  <span class="comment">// To read data archived by WriteCompressedBuffer( sizeof_buffer, buffer )</span></div>
<div class="line"><a name="l00829"></a><span class="lineno">  829</span>&#160;  <span class="comment">// do something like:</span></div>
<div class="line"><a name="l00830"></a><span class="lineno">  830</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00831"></a><span class="lineno">  831</span>&#160;  <span class="comment">//   size_t sizeof_buffer = 0;</span></div>
<div class="line"><a name="l00832"></a><span class="lineno">  832</span>&#160;  <span class="comment">//   ReadCompressedBufferSize(&amp;sizeof_buffer);</span></div>
<div class="line"><a name="l00833"></a><span class="lineno">  833</span>&#160;  <span class="comment">//   buffer = something with sizeof_buffer bytes.</span></div>
<div class="line"><a name="l00834"></a><span class="lineno">  834</span>&#160;  <span class="comment">//   int bFailedCRC = false;</span></div>
<div class="line"><a name="l00835"></a><span class="lineno">  835</span>&#160;  <span class="comment">//   bool ok = ReadCompressedBuffer( sizeof_buffer, buffer, &amp;bFailedCRC );</span></div>
<div class="line"><a name="l00836"></a><span class="lineno">  836</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l00837"></a><span class="lineno">  837</span>&#160; </div>
<div class="line"><a name="l00838"></a><span class="lineno">  838</span>&#160; </div>
<div class="line"><a name="l00839"></a><span class="lineno">  839</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00840"></a><span class="lineno">  840</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00841"></a><span class="lineno">  841</span>&#160;<span class="comment">    Red the size of a compressed buffer.</span></div>
<div class="line"><a name="l00842"></a><span class="lineno">  842</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00843"></a><span class="lineno">  843</span>&#160;<span class="comment">    sizeof__outbuffer - [out] size of the uncompressed buffer in bytes</span></div>
<div class="line"><a name="l00844"></a><span class="lineno">  844</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00845"></a><span class="lineno">  845</span>&#160;<span class="comment">    True if read was successful.</span></div>
<div class="line"><a name="l00846"></a><span class="lineno">  846</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00847"></a><span class="lineno">  847</span>&#160;  <span class="keywordtype">bool</span> ReadCompressedBufferSize( <span class="keywordtype">size_t</span>* sizeof__outbuffer );</div>
<div class="line"><a name="l00848"></a><span class="lineno">  848</span>&#160; </div>
<div class="line"><a name="l00849"></a><span class="lineno">  849</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00850"></a><span class="lineno">  850</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00851"></a><span class="lineno">  851</span>&#160;<span class="comment">    Read compressed information from an archive and uncompress it.</span></div>
<div class="line"><a name="l00852"></a><span class="lineno">  852</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00853"></a><span class="lineno">  853</span>&#160;<span class="comment">    sizeof__outbuffer - [in] size of the uncompressed buffer in bytes</span></div>
<div class="line"><a name="l00854"></a><span class="lineno">  854</span>&#160;<span class="comment">    outbuffer - [out] uncompressed buffer returned here</span></div>
<div class="line"><a name="l00855"></a><span class="lineno">  855</span>&#160;<span class="comment">    bFailedCRC - [out] true if cyclic redundancy check fails</span></div>
<div class="line"><a name="l00856"></a><span class="lineno">  856</span>&#160;<span class="comment">                      on uncompressed buffer</span></div>
<div class="line"><a name="l00857"></a><span class="lineno">  857</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00858"></a><span class="lineno">  858</span>&#160;<span class="comment">  Example:</span></div>
<div class="line"><a name="l00859"></a><span class="lineno">  859</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00860"></a><span class="lineno">  860</span>&#160;<span class="comment">          size_t sizeof_buffer = 0;</span></div>
<div class="line"><a name="l00861"></a><span class="lineno">  861</span>&#160;<span class="comment">          ReadCompressedBufferSize(&amp;sizeof_buffer);</span></div>
<div class="line"><a name="l00862"></a><span class="lineno">  862</span>&#160;<span class="comment">          buffer = ...; // something with sizeof_buffer bytes.</span></div>
<div class="line"><a name="l00863"></a><span class="lineno">  863</span>&#160;<span class="comment">          int bFailedCRC = false;</span></div>
<div class="line"><a name="l00864"></a><span class="lineno">  864</span>&#160;<span class="comment">          bool ok = ReadCompressedBuffer( sizeof_buffer, buffer, &amp;bFailedCRC );</span></div>
<div class="line"><a name="l00865"></a><span class="lineno">  865</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00866"></a><span class="lineno">  866</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00867"></a><span class="lineno">  867</span>&#160;<span class="comment">    True if read was successful.  You need to check the value</span></div>
<div class="line"><a name="l00868"></a><span class="lineno">  868</span>&#160;<span class="comment">    of bFailedCRC to see if the information that was read is valid.</span></div>
<div class="line"><a name="l00869"></a><span class="lineno">  869</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00870"></a><span class="lineno">  870</span>&#160;  <span class="keywordtype">bool</span> ReadCompressedBuffer(</div>
<div class="line"><a name="l00871"></a><span class="lineno">  871</span>&#160;          <span class="keywordtype">size_t</span> sizeof__outbuffer,</div>
<div class="line"><a name="l00872"></a><span class="lineno">  872</span>&#160;          <span class="keywordtype">void</span>* outbuffer,</div>
<div class="line"><a name="l00873"></a><span class="lineno">  873</span>&#160;          <span class="keywordtype">int</span>* bFailedCRC</div>
<div class="line"><a name="l00874"></a><span class="lineno">  874</span>&#160;          );</div>
<div class="line"><a name="l00875"></a><span class="lineno">  875</span>&#160; </div>
<div class="line"><a name="l00876"></a><span class="lineno">  876</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l00877"></a><span class="lineno">  877</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l00878"></a><span class="lineno">  878</span>&#160;<span class="comment">    Compress buffer and write the compressed information to the archive.</span></div>
<div class="line"><a name="l00879"></a><span class="lineno">  879</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l00880"></a><span class="lineno">  880</span>&#160;<span class="comment">    sizeof__inbuffer - [in] size of the uncompressed buffer in bytes</span></div>
<div class="line"><a name="l00881"></a><span class="lineno">  881</span>&#160;<span class="comment">    inbuffer - [in] uncompressed buffer</span></div>
<div class="line"><a name="l00882"></a><span class="lineno">  882</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l00883"></a><span class="lineno">  883</span>&#160;<span class="comment">    True if write was successful.</span></div>
<div class="line"><a name="l00884"></a><span class="lineno">  884</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l00885"></a><span class="lineno">  885</span>&#160;  <span class="keywordtype">bool</span> WriteCompressedBuffer(</div>
<div class="line"><a name="l00886"></a><span class="lineno">  886</span>&#160;    <span class="keywordtype">size_t</span> sizeof__inbuffer,</div>
<div class="line"><a name="l00887"></a><span class="lineno">  887</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">void</span>* inbuffer</div>
<div class="line"><a name="l00888"></a><span class="lineno">  888</span>&#160;    );</div>
<div class="line"><a name="l00889"></a><span class="lineno">  889</span>&#160; </div>
<div class="line"><a name="l00890"></a><span class="lineno">  890</span>&#160;  <span class="keywordtype">bool</span> ReadBool( <span class="keywordtype">bool</span>* );</div>
<div class="line"><a name="l00891"></a><span class="lineno">  891</span>&#160; </div>
<div class="line"><a name="l00892"></a><span class="lineno">  892</span>&#160;    <span class="keywordtype">bool</span> ReadChar(    <span class="comment">// Read an array of 8 bit chars</span></div>
<div class="line"><a name="l00893"></a><span class="lineno">  893</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of chars to read</span></div>
<div class="line"><a name="l00894"></a><span class="lineno">  894</span>&#160;            <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l00895"></a><span class="lineno">  895</span>&#160;            );  </div>
<div class="line"><a name="l00896"></a><span class="lineno">  896</span>&#160;    <span class="keywordtype">bool</span> ReadChar(    <span class="comment">// Read an array of 8 bit unsigned chars</span></div>
<div class="line"><a name="l00897"></a><span class="lineno">  897</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of unsigned chars to read</span></div>
<div class="line"><a name="l00898"></a><span class="lineno">  898</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l00899"></a><span class="lineno">  899</span>&#160;            );  </div>
<div class="line"><a name="l00900"></a><span class="lineno">  900</span>&#160;    <span class="keywordtype">bool</span> ReadChar(    <span class="comment">// Read a single 8 bit char</span></div>
<div class="line"><a name="l00901"></a><span class="lineno">  901</span>&#160;            <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l00902"></a><span class="lineno">  902</span>&#160;            );  </div>
<div class="line"><a name="l00903"></a><span class="lineno">  903</span>&#160;    <span class="keywordtype">bool</span> ReadChar(    <span class="comment">// Read a single 8 bit unsigned char</span></div>
<div class="line"><a name="l00904"></a><span class="lineno">  904</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l00905"></a><span class="lineno">  905</span>&#160;            );  </div>
<div class="line"><a name="l00906"></a><span class="lineno">  906</span>&#160; </div>
<div class="line"><a name="l00907"></a><span class="lineno">  907</span>&#160;    <span class="keywordtype">bool</span> ReadShort(   <span class="comment">// Read an array of 16 bit shorts</span></div>
<div class="line"><a name="l00908"></a><span class="lineno">  908</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of shorts to read</span></div>
<div class="line"><a name="l00909"></a><span class="lineno">  909</span>&#160;            <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l00910"></a><span class="lineno">  910</span>&#160;            );  </div>
<div class="line"><a name="l00911"></a><span class="lineno">  911</span>&#160;    <span class="keywordtype">bool</span> ReadShort(   <span class="comment">// Read an array of 16 bit unsigned shorts</span></div>
<div class="line"><a name="l00912"></a><span class="lineno">  912</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of shorts to read</span></div>
<div class="line"><a name="l00913"></a><span class="lineno">  913</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l00914"></a><span class="lineno">  914</span>&#160;            );  </div>
<div class="line"><a name="l00915"></a><span class="lineno">  915</span>&#160;    <span class="keywordtype">bool</span> ReadShort(   <span class="comment">// Read a single 16 bit short</span></div>
<div class="line"><a name="l00916"></a><span class="lineno">  916</span>&#160;            <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l00917"></a><span class="lineno">  917</span>&#160;            );  </div>
<div class="line"><a name="l00918"></a><span class="lineno">  918</span>&#160;    <span class="keywordtype">bool</span> ReadShort(   <span class="comment">// Read a single 16 bit unsigned short</span></div>
<div class="line"><a name="l00919"></a><span class="lineno">  919</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l00920"></a><span class="lineno">  920</span>&#160;            );  </div>
<div class="line"><a name="l00921"></a><span class="lineno">  921</span>&#160; </div>
<div class="line"><a name="l00922"></a><span class="lineno">  922</span>&#160;    <span class="keywordtype">bool</span> ReadInt( <span class="comment">// Read an array of 32 bit integers</span></div>
<div class="line"><a name="l00923"></a><span class="lineno">  923</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00924"></a><span class="lineno">  924</span>&#160;            <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l00925"></a><span class="lineno">  925</span>&#160;            ); </div>
<div class="line"><a name="l00926"></a><span class="lineno">  926</span>&#160;    <span class="keywordtype">bool</span> ReadInt( <span class="comment">// Read an array of 32 bit integers</span></div>
<div class="line"><a name="l00927"></a><span class="lineno">  927</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00928"></a><span class="lineno">  928</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l00929"></a><span class="lineno">  929</span>&#160;            ); </div>
<div class="line"><a name="l00930"></a><span class="lineno">  930</span>&#160;    <span class="keywordtype">bool</span> ReadInt( <span class="comment">// Read a single 32 bit integer</span></div>
<div class="line"><a name="l00931"></a><span class="lineno">  931</span>&#160;            <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l00932"></a><span class="lineno">  932</span>&#160;            ); </div>
<div class="line"><a name="l00933"></a><span class="lineno">  933</span>&#160;    <span class="keywordtype">bool</span> ReadInt( <span class="comment">// Read a single 32 bit unsigned integer</span></div>
<div class="line"><a name="l00934"></a><span class="lineno">  934</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l00935"></a><span class="lineno">  935</span>&#160;            ); </div>
<div class="line"><a name="l00936"></a><span class="lineno">  936</span>&#160; </div>
<div class="line"><a name="l00937"></a><span class="lineno">  937</span>&#160;    <span class="keywordtype">bool</span> ReadBigInt( <span class="comment">// Read an array of 64 bit integers</span></div>
<div class="line"><a name="l00938"></a><span class="lineno">  938</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00939"></a><span class="lineno">  939</span>&#160;            ON__INT64*      </div>
<div class="line"><a name="l00940"></a><span class="lineno">  940</span>&#160;            ); </div>
<div class="line"><a name="l00941"></a><span class="lineno">  941</span>&#160;    <span class="keywordtype">bool</span> ReadBigInt( <span class="comment">// Read an array of 64 bit integers</span></div>
<div class="line"><a name="l00942"></a><span class="lineno">  942</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00943"></a><span class="lineno">  943</span>&#160;            ON__UINT64*      </div>
<div class="line"><a name="l00944"></a><span class="lineno">  944</span>&#160;            ); </div>
<div class="line"><a name="l00945"></a><span class="lineno">  945</span>&#160;    <span class="keywordtype">bool</span> ReadBigInt( <span class="comment">// Read a single 64 bit integer</span></div>
<div class="line"><a name="l00946"></a><span class="lineno">  946</span>&#160;            ON__INT64*      </div>
<div class="line"><a name="l00947"></a><span class="lineno">  947</span>&#160;            ); </div>
<div class="line"><a name="l00948"></a><span class="lineno">  948</span>&#160;    <span class="keywordtype">bool</span> ReadBigInt( <span class="comment">// Read a single 64 bit unsigned integer</span></div>
<div class="line"><a name="l00949"></a><span class="lineno">  949</span>&#160;            ON__UINT64*      </div>
<div class="line"><a name="l00950"></a><span class="lineno">  950</span>&#160;            ); </div>
<div class="line"><a name="l00951"></a><span class="lineno">  951</span>&#160; </div>
<div class="line"><a name="l00952"></a><span class="lineno">  952</span>&#160;    <span class="keywordtype">bool</span> ReadLong( <span class="comment">// Read an array of 32 bit integers</span></div>
<div class="line"><a name="l00953"></a><span class="lineno">  953</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00954"></a><span class="lineno">  954</span>&#160;            <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l00955"></a><span class="lineno">  955</span>&#160;            ); </div>
<div class="line"><a name="l00956"></a><span class="lineno">  956</span>&#160;    <span class="keywordtype">bool</span> ReadLong( <span class="comment">// Read an array of 32 bit integers</span></div>
<div class="line"><a name="l00957"></a><span class="lineno">  957</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to read</span></div>
<div class="line"><a name="l00958"></a><span class="lineno">  958</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l00959"></a><span class="lineno">  959</span>&#160;            ); </div>
<div class="line"><a name="l00960"></a><span class="lineno">  960</span>&#160;    <span class="keywordtype">bool</span> ReadLong( <span class="comment">// Read a single 32 bit integer</span></div>
<div class="line"><a name="l00961"></a><span class="lineno">  961</span>&#160;            <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l00962"></a><span class="lineno">  962</span>&#160;            ); </div>
<div class="line"><a name="l00963"></a><span class="lineno">  963</span>&#160;    <span class="keywordtype">bool</span> ReadLong( <span class="comment">// Read a single 32 bit unsigned integer</span></div>
<div class="line"><a name="l00964"></a><span class="lineno">  964</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l00965"></a><span class="lineno">  965</span>&#160;            ); </div>
<div class="line"><a name="l00966"></a><span class="lineno">  966</span>&#160;    <span class="keywordtype">bool</span> ReadSize( <span class="comment">// Read a single size_t</span></div>
<div class="line"><a name="l00967"></a><span class="lineno">  967</span>&#160;            <span class="keywordtype">size_t</span>*</div>
<div class="line"><a name="l00968"></a><span class="lineno">  968</span>&#160;            ); </div>
<div class="line"><a name="l00969"></a><span class="lineno">  969</span>&#160; </div>
<div class="line"><a name="l00970"></a><span class="lineno">  970</span>&#160;  <span class="keywordtype">bool</span> ReadBigSize( <span class="keywordtype">size_t</span>* ); <span class="comment">// 64 bits</span></div>
<div class="line"><a name="l00971"></a><span class="lineno">  971</span>&#160;  </div>
<div class="line"><a name="l00972"></a><span class="lineno">  972</span>&#160;  <span class="keywordtype">bool</span> ReadBigTime( time_t* ); <span class="comment">// UCT seconds since 1 January 1970 (64 bits)</span></div>
<div class="line"><a name="l00973"></a><span class="lineno">  973</span>&#160; </div>
<div class="line"><a name="l00974"></a><span class="lineno">  974</span>&#160; </div>
<div class="line"><a name="l00975"></a><span class="lineno">  975</span>&#160;    <span class="keywordtype">bool</span> ReadFloat(   <span class="comment">// Read an array of floats</span></div>
<div class="line"><a name="l00976"></a><span class="lineno">  976</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of floats</span></div>
<div class="line"><a name="l00977"></a><span class="lineno">  977</span>&#160;            <span class="keywordtype">float</span>*</div>
<div class="line"><a name="l00978"></a><span class="lineno">  978</span>&#160;            );</div>
<div class="line"><a name="l00979"></a><span class="lineno">  979</span>&#160;    <span class="keywordtype">bool</span> ReadFloat(   <span class="comment">// Read a single float</span></div>
<div class="line"><a name="l00980"></a><span class="lineno">  980</span>&#160;            <span class="keywordtype">float</span>*</div>
<div class="line"><a name="l00981"></a><span class="lineno">  981</span>&#160;            );</div>
<div class="line"><a name="l00982"></a><span class="lineno">  982</span>&#160;    <span class="keywordtype">bool</span> ReadDouble(  <span class="comment">// Read an array of IEEE doubles</span></div>
<div class="line"><a name="l00983"></a><span class="lineno">  983</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of doubles</span></div>
<div class="line"><a name="l00984"></a><span class="lineno">  984</span>&#160;            <span class="keywordtype">double</span>*</div>
<div class="line"><a name="l00985"></a><span class="lineno">  985</span>&#160;            );</div>
<div class="line"><a name="l00986"></a><span class="lineno">  986</span>&#160;    <span class="keywordtype">bool</span> ReadDouble(  <span class="comment">// Read a single double</span></div>
<div class="line"><a name="l00987"></a><span class="lineno">  987</span>&#160;            <span class="keywordtype">double</span>*</div>
<div class="line"><a name="l00988"></a><span class="lineno">  988</span>&#160;            );</div>
<div class="line"><a name="l00989"></a><span class="lineno">  989</span>&#160; </div>
<div class="line"><a name="l00990"></a><span class="lineno">  990</span>&#160;  <span class="keywordtype">bool</span> ReadColor(</div>
<div class="line"><a name="l00991"></a><span class="lineno">  991</span>&#160;    <a class="code" href="class_o_n___color.html">ON_Color</a>&amp;</div>
<div class="line"><a name="l00992"></a><span class="lineno">  992</span>&#160;    );</div>
<div class="line"><a name="l00993"></a><span class="lineno">  993</span>&#160; </div>
<div class="line"><a name="l00994"></a><span class="lineno">  994</span>&#160;  <span class="keywordtype">bool</span> ReadPoint (</div>
<div class="line"><a name="l00995"></a><span class="lineno">  995</span>&#160;    <a class="code" href="class_o_n__2d_point.html">ON_2dPoint</a>&amp;</div>
<div class="line"><a name="l00996"></a><span class="lineno">  996</span>&#160;    );</div>
<div class="line"><a name="l00997"></a><span class="lineno">  997</span>&#160;  <span class="keywordtype">bool</span> ReadPoint (</div>
<div class="line"><a name="l00998"></a><span class="lineno">  998</span>&#160;    <a class="code" href="class_o_n__3d_point.html">ON_3dPoint</a>&amp;</div>
<div class="line"><a name="l00999"></a><span class="lineno">  999</span>&#160;    );</div>
<div class="line"><a name="l01000"></a><span class="lineno"> 1000</span>&#160;  <span class="keywordtype">bool</span> ReadPoint (</div>
<div class="line"><a name="l01001"></a><span class="lineno"> 1001</span>&#160;    <a class="code" href="class_o_n__4d_point.html">ON_4dPoint</a>&amp;</div>
<div class="line"><a name="l01002"></a><span class="lineno"> 1002</span>&#160;    );</div>
<div class="line"><a name="l01003"></a><span class="lineno"> 1003</span>&#160;  <span class="keywordtype">bool</span> ReadVector (</div>
<div class="line"><a name="l01004"></a><span class="lineno"> 1004</span>&#160;    <a class="code" href="class_o_n__2d_vector.html">ON_2dVector</a>&amp;</div>
<div class="line"><a name="l01005"></a><span class="lineno"> 1005</span>&#160;    );</div>
<div class="line"><a name="l01006"></a><span class="lineno"> 1006</span>&#160;  <span class="keywordtype">bool</span> ReadVector (</div>
<div class="line"><a name="l01007"></a><span class="lineno"> 1007</span>&#160;    <a class="code" href="class_o_n__3d_vector.html">ON_3dVector</a>&amp;</div>
<div class="line"><a name="l01008"></a><span class="lineno"> 1008</span>&#160;    );</div>
<div class="line"><a name="l01009"></a><span class="lineno"> 1009</span>&#160; </div>
<div class="line"><a name="l01010"></a><span class="lineno"> 1010</span>&#160;  <span class="keywordtype">bool</span> ReadBoundingBox(<a class="code" href="class_o_n___bounding_box.html">ON_BoundingBox</a>&amp;);</div>
<div class="line"><a name="l01011"></a><span class="lineno"> 1011</span>&#160; </div>
<div class="line"><a name="l01012"></a><span class="lineno"> 1012</span>&#160;  <span class="keywordtype">bool</span> ReadXform(<a class="code" href="class_o_n___xform.html">ON_Xform</a>&amp;);</div>
<div class="line"><a name="l01013"></a><span class="lineno"> 1013</span>&#160; </div>
<div class="line"><a name="l01014"></a><span class="lineno"> 1014</span>&#160;  <span class="keywordtype">bool</span> ReadPlaneEquation(<a class="code" href="class_o_n___plane_equation.html">ON_PlaneEquation</a>&amp;);</div>
<div class="line"><a name="l01015"></a><span class="lineno"> 1015</span>&#160; </div>
<div class="line"><a name="l01016"></a><span class="lineno"> 1016</span>&#160;  <span class="keywordtype">bool</span> ReadPlane(<a class="code" href="class_o_n___plane.html">ON_Plane</a>&amp;);</div>
<div class="line"><a name="l01017"></a><span class="lineno"> 1017</span>&#160; </div>
<div class="line"><a name="l01018"></a><span class="lineno"> 1018</span>&#160;  <span class="keywordtype">bool</span> ReadLine(<a class="code" href="class_o_n___line.html">ON_Line</a>&amp;);</div>
<div class="line"><a name="l01019"></a><span class="lineno"> 1019</span>&#160; </div>
<div class="line"><a name="l01020"></a><span class="lineno"> 1020</span>&#160;  <span class="keywordtype">bool</span> ReadArc(<a class="code" href="class_o_n___arc.html">ON_Arc</a>&amp;);</div>
<div class="line"><a name="l01021"></a><span class="lineno"> 1021</span>&#160; </div>
<div class="line"><a name="l01022"></a><span class="lineno"> 1022</span>&#160;  <span class="keywordtype">bool</span> ReadCircle(<a class="code" href="class_o_n___circle.html">ON_Circle</a>&amp;);</div>
<div class="line"><a name="l01023"></a><span class="lineno"> 1023</span>&#160; </div>
<div class="line"><a name="l01024"></a><span class="lineno"> 1024</span>&#160;  <span class="keywordtype">bool</span> ReadInterval( <a class="code" href="class_o_n___interval.html">ON_Interval</a>&amp; );</div>
<div class="line"><a name="l01025"></a><span class="lineno"> 1025</span>&#160; </div>
<div class="line"><a name="l01026"></a><span class="lineno"> 1026</span>&#160;  <span class="keywordtype">bool</span> ReadUuid( <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; );</div>
<div class="line"><a name="l01027"></a><span class="lineno"> 1027</span>&#160; </div>
<div class="line"><a name="l01028"></a><span class="lineno"> 1028</span>&#160;  <span class="keywordtype">bool</span> ReadDisplayMaterialRef( <a class="code" href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a>&amp; );</div>
<div class="line"><a name="l01029"></a><span class="lineno"> 1029</span>&#160; </div>
<div class="line"><a name="l01030"></a><span class="lineno"> 1030</span>&#160;  <span class="keywordtype">bool</span> ReadLinetypeSegment( <a class="code" href="class_o_n___linetype_segment.html">ON_LinetypeSegment</a>&amp; );</div>
<div class="line"><a name="l01031"></a><span class="lineno"> 1031</span>&#160; </div>
<div class="line"><a name="l01032"></a><span class="lineno"> 1032</span>&#160;  <span class="comment">// All times are stored in coordinated universal time</span></div>
<div class="line"><a name="l01033"></a><span class="lineno"> 1033</span>&#160;  <span class="comment">// ( a.k.a GMT, UTC ).  Use ANSI C time() and gmtime() calls.</span></div>
<div class="line"><a name="l01034"></a><span class="lineno"> 1034</span>&#160;  <span class="keywordtype">bool</span> ReadTime( <span class="keyword">struct</span> tm&amp; );</div>
<div class="line"><a name="l01035"></a><span class="lineno"> 1035</span>&#160; </div>
<div class="line"><a name="l01036"></a><span class="lineno"> 1036</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01037"></a><span class="lineno"> 1037</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01038"></a><span class="lineno"> 1038</span>&#160;<span class="comment">    str_array_count - [out]</span></div>
<div class="line"><a name="l01039"></a><span class="lineno"> 1039</span>&#160;<span class="comment">      Number of elements in the string array. All ON_BinaryArchive string</span></div>
<div class="line"><a name="l01040"></a><span class="lineno"> 1040</span>&#160;<span class="comment">      WriteString() functions write a null terminator to the file and</span></div>
<div class="line"><a name="l01041"></a><span class="lineno"> 1041</span>&#160;<span class="comment">      the null terminator is included in the count. This means that</span></div>
<div class="line"><a name="l01042"></a><span class="lineno"> 1042</span>&#160;<span class="comment">      if a string has a non-zero element, then str_array_count &gt;= 2.</span></div>
<div class="line"><a name="l01043"></a><span class="lineno"> 1043</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l01044"></a><span class="lineno"> 1044</span>&#160;<span class="comment">    Modify your code to use ReadStringUTF8ElementCount() when reading</span></div>
<div class="line"><a name="l01045"></a><span class="lineno"> 1045</span>&#160;<span class="comment">    UTF-8 encoded strings and ReadStringUTF16ElementCount()</span></div>
<div class="line"><a name="l01046"></a><span class="lineno"> 1046</span>&#160;<span class="comment">    when reading UTF-16 encoded strings.</span></div>
<div class="line"><a name="l01047"></a><span class="lineno"> 1047</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01048"></a><span class="lineno"> 1048</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> ReadStringSize(</div>
<div class="line"><a name="l01049"></a><span class="lineno"> 1049</span>&#160;      <span class="keywordtype">size_t</span>* str_array_count</div>
<div class="line"><a name="l01050"></a><span class="lineno"> 1050</span>&#160;      );</div>
<div class="line"><a name="l01051"></a><span class="lineno"> 1051</span>&#160; </div>
<div class="line"><a name="l01052"></a><span class="lineno"> 1052</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01053"></a><span class="lineno"> 1053</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01054"></a><span class="lineno"> 1054</span>&#160;<span class="comment">    string_utf8_element_count - [out]</span></div>
<div class="line"><a name="l01055"></a><span class="lineno"> 1055</span>&#160;<span class="comment">      Number of bytes in the string array. All ON_BinaryArchive string</span></div>
<div class="line"><a name="l01056"></a><span class="lineno"> 1056</span>&#160;<span class="comment">      WriteString() functions write a null terminator to the file and</span></div>
<div class="line"><a name="l01057"></a><span class="lineno"> 1057</span>&#160;<span class="comment">      the null terminator is included in string_element_count. This means</span></div>
<div class="line"><a name="l01058"></a><span class="lineno"> 1058</span>&#160;<span class="comment">      that if opennurbs wrote the string, either string_element_count = 0</span></div>
<div class="line"><a name="l01059"></a><span class="lineno"> 1059</span>&#160;<span class="comment">      or string_element_count &gt;= 2.</span></div>
<div class="line"><a name="l01060"></a><span class="lineno"> 1060</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01061"></a><span class="lineno"> 1061</span>&#160;  <span class="keywordtype">bool</span> ReadStringUTF8ElementCount(</div>
<div class="line"><a name="l01062"></a><span class="lineno"> 1062</span>&#160;    <span class="keywordtype">size_t</span>* string_utf8_element_count</div>
<div class="line"><a name="l01063"></a><span class="lineno"> 1063</span>&#160;    );</div>
<div class="line"><a name="l01064"></a><span class="lineno"> 1064</span>&#160; </div>
<div class="line"><a name="l01065"></a><span class="lineno"> 1065</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01066"></a><span class="lineno"> 1066</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01067"></a><span class="lineno"> 1067</span>&#160;<span class="comment">    string_utf16_element_count - [out]</span></div>
<div class="line"><a name="l01068"></a><span class="lineno"> 1068</span>&#160;<span class="comment">      Number of elements in the string array. All ON_BinaryArchive string</span></div>
<div class="line"><a name="l01069"></a><span class="lineno"> 1069</span>&#160;<span class="comment">      WriteString() functions write a null terminator to the file and</span></div>
<div class="line"><a name="l01070"></a><span class="lineno"> 1070</span>&#160;<span class="comment">      the null terminator is included in string_element_count. This means</span></div>
<div class="line"><a name="l01071"></a><span class="lineno"> 1071</span>&#160;<span class="comment">      that if opennurbs wrote the string, either string_element_count = 0</span></div>
<div class="line"><a name="l01072"></a><span class="lineno"> 1072</span>&#160;<span class="comment">      or string_element_count &gt;= 2.</span></div>
<div class="line"><a name="l01073"></a><span class="lineno"> 1073</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01074"></a><span class="lineno"> 1074</span>&#160;  <span class="keywordtype">bool</span> ReadStringUTF16ElementCount(</div>
<div class="line"><a name="l01075"></a><span class="lineno"> 1075</span>&#160;    <span class="keywordtype">size_t</span>* string_utf16_element_count</div>
<div class="line"><a name="l01076"></a><span class="lineno"> 1076</span>&#160;    );</div>
<div class="line"><a name="l01077"></a><span class="lineno"> 1077</span>&#160; </div>
<div class="line"><a name="l01078"></a><span class="lineno"> 1078</span>&#160; </div>
<div class="line"><a name="l01079"></a><span class="lineno"> 1079</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01080"></a><span class="lineno"> 1080</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01081"></a><span class="lineno"> 1081</span>&#160;<span class="comment">    str_array_count - [in]</span></div>
<div class="line"><a name="l01082"></a><span class="lineno"> 1082</span>&#160;<span class="comment">      Number of char elements in str_array[], including the null</span></div>
<div class="line"><a name="l01083"></a><span class="lineno"> 1083</span>&#160;<span class="comment">      terminator.  The value of str_array_count is returned by</span></div>
<div class="line"><a name="l01084"></a><span class="lineno"> 1084</span>&#160;<span class="comment">      ReadCharStringElementCount().</span></div>
<div class="line"><a name="l01085"></a><span class="lineno"> 1085</span>&#160;<span class="comment">    str_array - [in/out]</span></div>
<div class="line"><a name="l01086"></a><span class="lineno"> 1086</span>&#160;<span class="comment">      Pass in an array with at least str_array_count elements.</span></div>
<div class="line"><a name="l01087"></a><span class="lineno"> 1087</span>&#160;<span class="comment">      If true is returned and str_array_count &gt; 0,</span></div>
<div class="line"><a name="l01088"></a><span class="lineno"> 1088</span>&#160;<span class="comment">      then str_array[str_array_count-1] = 0. All strings with</span></div>
<div class="line"><a name="l01089"></a><span class="lineno"> 1089</span>&#160;<span class="comment">      char elements written by Rhino are UTF-8 encoded</span></div>
<div class="line"><a name="l01090"></a><span class="lineno"> 1090</span>&#160;<span class="comment">      unicode strings.</span></div>
<div class="line"><a name="l01091"></a><span class="lineno"> 1091</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01092"></a><span class="lineno"> 1092</span>&#160;  <span class="keywordtype">bool</span> ReadString(</div>
<div class="line"><a name="l01093"></a><span class="lineno"> 1093</span>&#160;      <span class="keywordtype">size_t</span> str_array_count,</div>
<div class="line"><a name="l01094"></a><span class="lineno"> 1094</span>&#160;      <span class="keywordtype">char</span>* str_array</div>
<div class="line"><a name="l01095"></a><span class="lineno"> 1095</span>&#160;      );</div>
<div class="line"><a name="l01096"></a><span class="lineno"> 1096</span>&#160; </div>
<div class="line"><a name="l01097"></a><span class="lineno"> 1097</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01098"></a><span class="lineno"> 1098</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01099"></a><span class="lineno"> 1099</span>&#160;<span class="comment">    str_array_count - [in]</span></div>
<div class="line"><a name="l01100"></a><span class="lineno"> 1100</span>&#160;<span class="comment">      Number of unsignd char elements in str_array[], including</span></div>
<div class="line"><a name="l01101"></a><span class="lineno"> 1101</span>&#160;<span class="comment">      the null terminator. The value of str_array_count is returned</span></div>
<div class="line"><a name="l01102"></a><span class="lineno"> 1102</span>&#160;<span class="comment">      by ReadCharStringElementCount().</span></div>
<div class="line"><a name="l01103"></a><span class="lineno"> 1103</span>&#160;<span class="comment">    str_array - [in/out]</span></div>
<div class="line"><a name="l01104"></a><span class="lineno"> 1104</span>&#160;<span class="comment">      Pass in an array with at least str_array_count elements.</span></div>
<div class="line"><a name="l01105"></a><span class="lineno"> 1105</span>&#160;<span class="comment">      If true is returned and str_array_count &gt; 0,</span></div>
<div class="line"><a name="l01106"></a><span class="lineno"> 1106</span>&#160;<span class="comment">      then str_array[str_array_count-1] = 0. All strings with</span></div>
<div class="line"><a name="l01107"></a><span class="lineno"> 1107</span>&#160;<span class="comment">      unsigned char elements written by Rhino are UTF-8 encoded </span></div>
<div class="line"><a name="l01108"></a><span class="lineno"> 1108</span>&#160;<span class="comment">      unicode strings.</span></div>
<div class="line"><a name="l01109"></a><span class="lineno"> 1109</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01110"></a><span class="lineno"> 1110</span>&#160;  <span class="keywordtype">bool</span> ReadString(</div>
<div class="line"><a name="l01111"></a><span class="lineno"> 1111</span>&#160;      <span class="keywordtype">size_t</span> str_array_count,</div>
<div class="line"><a name="l01112"></a><span class="lineno"> 1112</span>&#160;      <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* str_array</div>
<div class="line"><a name="l01113"></a><span class="lineno"> 1113</span>&#160;      );</div>
<div class="line"><a name="l01114"></a><span class="lineno"> 1114</span>&#160; </div>
<div class="line"><a name="l01115"></a><span class="lineno"> 1115</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01116"></a><span class="lineno"> 1116</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01117"></a><span class="lineno"> 1117</span>&#160;<span class="comment">    str_array_count - [in]</span></div>
<div class="line"><a name="l01118"></a><span class="lineno"> 1118</span>&#160;<span class="comment">      Number of unsigned short elements in str_array[],</span></div>
<div class="line"><a name="l01119"></a><span class="lineno"> 1119</span>&#160;<span class="comment">      including the null terminator. The value of </span></div>
<div class="line"><a name="l01120"></a><span class="lineno"> 1120</span>&#160;<span class="comment">      str_array_count is returned by ReadWideCharStringElementCount().</span></div>
<div class="line"><a name="l01121"></a><span class="lineno"> 1121</span>&#160;<span class="comment">    str_array - [in/out]</span></div>
<div class="line"><a name="l01122"></a><span class="lineno"> 1122</span>&#160;<span class="comment">      Pass in an array with at least str_array_count elements.</span></div>
<div class="line"><a name="l01123"></a><span class="lineno"> 1123</span>&#160;<span class="comment">      If true is returned and str_array_count &gt; 0,</span></div>
<div class="line"><a name="l01124"></a><span class="lineno"> 1124</span>&#160;<span class="comment">      then str_array[str_array_count-1] = 0. All strings with</span></div>
<div class="line"><a name="l01125"></a><span class="lineno"> 1125</span>&#160;<span class="comment">      unsigned short elements written by Rhino are UTF-16 encoded</span></div>
<div class="line"><a name="l01126"></a><span class="lineno"> 1126</span>&#160;<span class="comment">      unicode strings.</span></div>
<div class="line"><a name="l01127"></a><span class="lineno"> 1127</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01128"></a><span class="lineno"> 1128</span>&#160;  <span class="keywordtype">bool</span> ReadString(</div>
<div class="line"><a name="l01129"></a><span class="lineno"> 1129</span>&#160;      <span class="keywordtype">size_t</span> str_array_count,</div>
<div class="line"><a name="l01130"></a><span class="lineno"> 1130</span>&#160;      <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>*  str_array</div>
<div class="line"><a name="l01131"></a><span class="lineno"> 1131</span>&#160;      );</div>
<div class="line"><a name="l01132"></a><span class="lineno"> 1132</span>&#160; </div>
<div class="line"><a name="l01133"></a><span class="lineno"> 1133</span>&#160;  <span class="keywordtype">bool</span> ReadString( <a class="code" href="class_o_n___string.html">ON_String</a>&amp; sUTF8 );</div>
<div class="line"><a name="l01134"></a><span class="lineno"> 1134</span>&#160; </div>
<div class="line"><a name="l01135"></a><span class="lineno"> 1135</span>&#160;  <span class="keywordtype">bool</span> ReadString( <a class="code" href="class_o_n__w_string.html">ON_wString</a>&amp; s );</div>
<div class="line"><a name="l01136"></a><span class="lineno"> 1136</span>&#160; </div>
<div class="line"><a name="l01137"></a><span class="lineno"> 1137</span>&#160;  <span class="keywordtype">bool</span> ReadComponentIndex( ON_COMPONENT_INDEX&amp; );</div>
<div class="line"><a name="l01138"></a><span class="lineno"> 1138</span>&#160; </div>
<div class="line"><a name="l01139"></a><span class="lineno"> 1139</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;bool&gt;</a>&amp; );</div>
<div class="line"><a name="l01140"></a><span class="lineno"> 1140</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;char&gt;</a>&amp; );</div>
<div class="line"><a name="l01141"></a><span class="lineno"> 1141</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;short&gt;</a>&amp; );</div>
<div class="line"><a name="l01142"></a><span class="lineno"> 1142</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;int&gt;</a>&amp; );</div>
<div class="line"><a name="l01143"></a><span class="lineno"> 1143</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;float&gt;</a>&amp; );</div>
<div class="line"><a name="l01144"></a><span class="lineno"> 1144</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a>&amp; );</div>
<div class="line"><a name="l01145"></a><span class="lineno"> 1145</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_Color&gt;</a>&amp; );</div>
<div class="line"><a name="l01146"></a><span class="lineno"> 1146</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01147"></a><span class="lineno"> 1147</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01148"></a><span class="lineno"> 1148</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_4dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01149"></a><span class="lineno"> 1149</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2dVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01150"></a><span class="lineno"> 1150</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01151"></a><span class="lineno"> 1151</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_Xform&gt;</a>&amp; );</div>
<div class="line"><a name="l01152"></a><span class="lineno"> 1152</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01153"></a><span class="lineno"> 1153</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01154"></a><span class="lineno"> 1154</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_4fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01155"></a><span class="lineno"> 1155</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2fVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01156"></a><span class="lineno"> 1156</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3fVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01157"></a><span class="lineno"> 1157</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_UUID&gt;</a>&amp; );</div>
<div class="line"><a name="l01158"></a><span class="lineno"> 1158</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_UuidIndex&gt;</a>&amp; );</div>
<div class="line"><a name="l01159"></a><span class="lineno"> 1159</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_SurfaceCurvature&gt;</a>&amp; );</div>
<div class="line"><a name="l01160"></a><span class="lineno"> 1160</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_String&gt;</a>&amp; );</div>
<div class="line"><a name="l01161"></a><span class="lineno"> 1161</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_wString&gt;</a>&amp; );</div>
<div class="line"><a name="l01162"></a><span class="lineno"> 1162</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_DisplayMaterialRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01163"></a><span class="lineno"> 1163</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_LinetypeSegment&gt;</a>&amp; );  </div>
<div class="line"><a name="l01164"></a><span class="lineno"> 1164</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_MappingChannel&gt;</a>&amp; );</div>
<div class="line"><a name="l01165"></a><span class="lineno"> 1165</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_MaterialRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01166"></a><span class="lineno"> 1166</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_MappingRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01167"></a><span class="lineno"> 1167</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;class ON_ObjRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01168"></a><span class="lineno"> 1168</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;class ON_ObjRef_IRefID&gt;</a>&amp; );</div>
<div class="line"><a name="l01169"></a><span class="lineno"> 1169</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;class ON_ClippingPlaneInfo&gt;</a>&amp; );</div>
<div class="line"><a name="l01170"></a><span class="lineno"> 1170</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___object_array.html">ON_ObjectArray&lt;class ON_Layer&gt;</a>&amp; );</div>
<div class="line"><a name="l01171"></a><span class="lineno"> 1171</span>&#160;  <span class="keywordtype">bool</span> ReadArray( <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;class ON_Layer*&gt;</a>&amp; );</div>
<div class="line"><a name="l01172"></a><span class="lineno"> 1172</span>&#160; </div>
<div class="line"><a name="l01173"></a><span class="lineno"> 1173</span>&#160;  <span class="keywordtype">bool</span> WriteBool( <span class="keywordtype">bool</span> );</div>
<div class="line"><a name="l01174"></a><span class="lineno"> 1174</span>&#160; </div>
<div class="line"><a name="l01175"></a><span class="lineno"> 1175</span>&#160;  <span class="keywordtype">bool</span> WriteChar(    <span class="comment">// Write an array of 8 bit chars</span></div>
<div class="line"><a name="l01176"></a><span class="lineno"> 1176</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of chars to write</span></div>
<div class="line"><a name="l01177"></a><span class="lineno"> 1177</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l01178"></a><span class="lineno"> 1178</span>&#160;            );  </div>
<div class="line"><a name="l01179"></a><span class="lineno"> 1179</span>&#160;    <span class="keywordtype">bool</span> WriteChar(    <span class="comment">// Write an array of 8 bit unsigned chars</span></div>
<div class="line"><a name="l01180"></a><span class="lineno"> 1180</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of unsigned chars to write</span></div>
<div class="line"><a name="l01181"></a><span class="lineno"> 1181</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*    </div>
<div class="line"><a name="l01182"></a><span class="lineno"> 1182</span>&#160;            );  </div>
<div class="line"><a name="l01183"></a><span class="lineno"> 1183</span>&#160;    <span class="keywordtype">bool</span> WriteChar(    <span class="comment">// Write a single 8 bit char</span></div>
<div class="line"><a name="l01184"></a><span class="lineno"> 1184</span>&#160;            <span class="keywordtype">char</span></div>
<div class="line"><a name="l01185"></a><span class="lineno"> 1185</span>&#160;            );  </div>
<div class="line"><a name="l01186"></a><span class="lineno"> 1186</span>&#160;    <span class="keywordtype">bool</span> WriteChar(    <span class="comment">// Write a single 8 bit unsigned char</span></div>
<div class="line"><a name="l01187"></a><span class="lineno"> 1187</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span></div>
<div class="line"><a name="l01188"></a><span class="lineno"> 1188</span>&#160;            );  </div>
<div class="line"><a name="l01189"></a><span class="lineno"> 1189</span>&#160; </div>
<div class="line"><a name="l01190"></a><span class="lineno"> 1190</span>&#160;    <span class="keywordtype">bool</span> WriteShort(   <span class="comment">// Write an array of 16 bit shorts</span></div>
<div class="line"><a name="l01191"></a><span class="lineno"> 1191</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of shorts to write</span></div>
<div class="line"><a name="l01192"></a><span class="lineno"> 1192</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l01193"></a><span class="lineno"> 1193</span>&#160;            );  </div>
<div class="line"><a name="l01194"></a><span class="lineno"> 1194</span>&#160;    <span class="keywordtype">bool</span> WriteShort(   <span class="comment">// Write an array of 16 bit unsigned shorts</span></div>
<div class="line"><a name="l01195"></a><span class="lineno"> 1195</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of shorts to write</span></div>
<div class="line"><a name="l01196"></a><span class="lineno"> 1196</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>*    </div>
<div class="line"><a name="l01197"></a><span class="lineno"> 1197</span>&#160;            );  </div>
<div class="line"><a name="l01198"></a><span class="lineno"> 1198</span>&#160;    <span class="keywordtype">bool</span> WriteShort(   <span class="comment">// Write a single 16 bit short</span></div>
<div class="line"><a name="l01199"></a><span class="lineno"> 1199</span>&#160;            <span class="keywordtype">short</span></div>
<div class="line"><a name="l01200"></a><span class="lineno"> 1200</span>&#160;            );  </div>
<div class="line"><a name="l01201"></a><span class="lineno"> 1201</span>&#160;    <span class="keywordtype">bool</span> WriteShort(   <span class="comment">// Write a single 16 bit unsigned short</span></div>
<div class="line"><a name="l01202"></a><span class="lineno"> 1202</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span></div>
<div class="line"><a name="l01203"></a><span class="lineno"> 1203</span>&#160;            );  </div>
<div class="line"><a name="l01204"></a><span class="lineno"> 1204</span>&#160; </div>
<div class="line"><a name="l01205"></a><span class="lineno"> 1205</span>&#160;    <span class="keywordtype">bool</span> WriteInt( <span class="comment">// Write an array of 32 bit integers</span></div>
<div class="line"><a name="l01206"></a><span class="lineno"> 1206</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01207"></a><span class="lineno"> 1207</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l01208"></a><span class="lineno"> 1208</span>&#160;            ); </div>
<div class="line"><a name="l01209"></a><span class="lineno"> 1209</span>&#160;    <span class="keywordtype">bool</span> WriteInt( <span class="comment">// Write an array of 32 bit integers</span></div>
<div class="line"><a name="l01210"></a><span class="lineno"> 1210</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01211"></a><span class="lineno"> 1211</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*      </div>
<div class="line"><a name="l01212"></a><span class="lineno"> 1212</span>&#160;            ); </div>
<div class="line"><a name="l01213"></a><span class="lineno"> 1213</span>&#160;    <span class="keywordtype">bool</span> WriteInt( <span class="comment">// Write a single 32 bit integer</span></div>
<div class="line"><a name="l01214"></a><span class="lineno"> 1214</span>&#160;            <span class="keywordtype">int</span>    </div>
<div class="line"><a name="l01215"></a><span class="lineno"> 1215</span>&#160;            ); </div>
<div class="line"><a name="l01216"></a><span class="lineno"> 1216</span>&#160;    <span class="keywordtype">bool</span> WriteInt( <span class="comment">// Write a single 32 bit unsigned integer</span></div>
<div class="line"><a name="l01217"></a><span class="lineno"> 1217</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span></div>
<div class="line"><a name="l01218"></a><span class="lineno"> 1218</span>&#160;            ); </div>
<div class="line"><a name="l01219"></a><span class="lineno"> 1219</span>&#160; </div>
<div class="line"><a name="l01220"></a><span class="lineno"> 1220</span>&#160;    <span class="keywordtype">bool</span> WriteBigInt( <span class="comment">// Write an array of 64 bit integers</span></div>
<div class="line"><a name="l01221"></a><span class="lineno"> 1221</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01222"></a><span class="lineno"> 1222</span>&#160;            <span class="keyword">const</span> ON__INT64*      </div>
<div class="line"><a name="l01223"></a><span class="lineno"> 1223</span>&#160;            ); </div>
<div class="line"><a name="l01224"></a><span class="lineno"> 1224</span>&#160;    <span class="keywordtype">bool</span> WriteBigInt( <span class="comment">// Write an array of 64 bit integers</span></div>
<div class="line"><a name="l01225"></a><span class="lineno"> 1225</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01226"></a><span class="lineno"> 1226</span>&#160;            <span class="keyword">const</span> ON__UINT64*      </div>
<div class="line"><a name="l01227"></a><span class="lineno"> 1227</span>&#160;            ); </div>
<div class="line"><a name="l01228"></a><span class="lineno"> 1228</span>&#160;    <span class="keywordtype">bool</span> WriteBigInt( <span class="comment">// Write a single 64 bit integer</span></div>
<div class="line"><a name="l01229"></a><span class="lineno"> 1229</span>&#160;            ON__INT64    </div>
<div class="line"><a name="l01230"></a><span class="lineno"> 1230</span>&#160;            ); </div>
<div class="line"><a name="l01231"></a><span class="lineno"> 1231</span>&#160;    <span class="keywordtype">bool</span> WriteBigInt( <span class="comment">// Write a single 64 bit unsigned integer</span></div>
<div class="line"><a name="l01232"></a><span class="lineno"> 1232</span>&#160;            ON__UINT64</div>
<div class="line"><a name="l01233"></a><span class="lineno"> 1233</span>&#160;            ); </div>
<div class="line"><a name="l01234"></a><span class="lineno"> 1234</span>&#160; </div>
<div class="line"><a name="l01235"></a><span class="lineno"> 1235</span>&#160;    <span class="keywordtype">bool</span> WriteLong( <span class="comment">// Write an array of 32 bit integers</span></div>
<div class="line"><a name="l01236"></a><span class="lineno"> 1236</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01237"></a><span class="lineno"> 1237</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l01238"></a><span class="lineno"> 1238</span>&#160;            ); </div>
<div class="line"><a name="l01239"></a><span class="lineno"> 1239</span>&#160;    <span class="keywordtype">bool</span> WriteLong( <span class="comment">// Write an array of 32 bit integers</span></div>
<div class="line"><a name="l01240"></a><span class="lineno"> 1240</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of ints to write</span></div>
<div class="line"><a name="l01241"></a><span class="lineno"> 1241</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>*      </div>
<div class="line"><a name="l01242"></a><span class="lineno"> 1242</span>&#160;            ); </div>
<div class="line"><a name="l01243"></a><span class="lineno"> 1243</span>&#160;    <span class="keywordtype">bool</span> WriteLong( <span class="comment">// Write a single 32 bit integer</span></div>
<div class="line"><a name="l01244"></a><span class="lineno"> 1244</span>&#160;            <span class="keywordtype">long</span>    </div>
<div class="line"><a name="l01245"></a><span class="lineno"> 1245</span>&#160;            ); </div>
<div class="line"><a name="l01246"></a><span class="lineno"> 1246</span>&#160;    <span class="keywordtype">bool</span> WriteLong( <span class="comment">// Write a single 32 bit unsigned integer</span></div>
<div class="line"><a name="l01247"></a><span class="lineno"> 1247</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span></div>
<div class="line"><a name="l01248"></a><span class="lineno"> 1248</span>&#160;            ); </div>
<div class="line"><a name="l01249"></a><span class="lineno"> 1249</span>&#160;    <span class="keywordtype">bool</span> WriteSize( <span class="comment">// Write a single size_t</span></div>
<div class="line"><a name="l01250"></a><span class="lineno"> 1250</span>&#160;            <span class="keywordtype">size_t</span></div>
<div class="line"><a name="l01251"></a><span class="lineno"> 1251</span>&#160;            ); </div>
<div class="line"><a name="l01252"></a><span class="lineno"> 1252</span>&#160; </div>
<div class="line"><a name="l01253"></a><span class="lineno"> 1253</span>&#160;  <span class="keywordtype">bool</span> WriteBigSize( <span class="keywordtype">size_t</span> ); <span class="comment">// 64 bits </span></div>
<div class="line"><a name="l01254"></a><span class="lineno"> 1254</span>&#160;  </div>
<div class="line"><a name="l01255"></a><span class="lineno"> 1255</span>&#160;  <span class="keywordtype">bool</span> WriteBigTime( time_t ); <span class="comment">// UCT seconds since 1 January 1970 (64 bits)</span></div>
<div class="line"><a name="l01256"></a><span class="lineno"> 1256</span>&#160; </div>
<div class="line"><a name="l01257"></a><span class="lineno"> 1257</span>&#160;    <span class="keywordtype">bool</span> WriteFloat(   <span class="comment">// Write a number of IEEE floats</span></div>
<div class="line"><a name="l01258"></a><span class="lineno"> 1258</span>&#160;            <span class="keywordtype">size_t</span>,       <span class="comment">// number of doubles</span></div>
<div class="line"><a name="l01259"></a><span class="lineno"> 1259</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">float</span>*</div>
<div class="line"><a name="l01260"></a><span class="lineno"> 1260</span>&#160;            );</div>
<div class="line"><a name="l01261"></a><span class="lineno"> 1261</span>&#160;    <span class="keywordtype">bool</span> WriteFloat(   <span class="comment">// Write a single float</span></div>
<div class="line"><a name="l01262"></a><span class="lineno"> 1262</span>&#160;            <span class="keywordtype">float</span></div>
<div class="line"><a name="l01263"></a><span class="lineno"> 1263</span>&#160;            );</div>
<div class="line"><a name="l01264"></a><span class="lineno"> 1264</span>&#160;    <span class="keywordtype">bool</span> WriteDouble(  <span class="comment">// Write a single double</span></div>
<div class="line"><a name="l01265"></a><span class="lineno"> 1265</span>&#160;      <span class="keywordtype">size_t</span>,</div>
<div class="line"><a name="l01266"></a><span class="lineno"> 1266</span>&#160;            <span class="keyword">const</span> <span class="keywordtype">double</span>*</div>
<div class="line"><a name="l01267"></a><span class="lineno"> 1267</span>&#160;            );</div>
<div class="line"><a name="l01268"></a><span class="lineno"> 1268</span>&#160;    <span class="keywordtype">bool</span> WriteDouble(  <span class="comment">// Write a single double</span></div>
<div class="line"><a name="l01269"></a><span class="lineno"> 1269</span>&#160;            <span class="keywordtype">double</span></div>
<div class="line"><a name="l01270"></a><span class="lineno"> 1270</span>&#160;            );</div>
<div class="line"><a name="l01271"></a><span class="lineno"> 1271</span>&#160; </div>
<div class="line"><a name="l01272"></a><span class="lineno"> 1272</span>&#160;  <span class="keywordtype">bool</span> WriteColor (</div>
<div class="line"><a name="l01273"></a><span class="lineno"> 1273</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n___color.html">ON_Color</a>&amp;</div>
<div class="line"><a name="l01274"></a><span class="lineno"> 1274</span>&#160;    );</div>
<div class="line"><a name="l01275"></a><span class="lineno"> 1275</span>&#160; </div>
<div class="line"><a name="l01276"></a><span class="lineno"> 1276</span>&#160;  <span class="keywordtype">bool</span> WritePoint (</div>
<div class="line"><a name="l01277"></a><span class="lineno"> 1277</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__2d_point.html">ON_2dPoint</a>&amp;</div>
<div class="line"><a name="l01278"></a><span class="lineno"> 1278</span>&#160;    );</div>
<div class="line"><a name="l01279"></a><span class="lineno"> 1279</span>&#160;  <span class="keywordtype">bool</span> WritePoint (</div>
<div class="line"><a name="l01280"></a><span class="lineno"> 1280</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__3d_point.html">ON_3dPoint</a>&amp;</div>
<div class="line"><a name="l01281"></a><span class="lineno"> 1281</span>&#160;    );</div>
<div class="line"><a name="l01282"></a><span class="lineno"> 1282</span>&#160;  <span class="keywordtype">bool</span> WritePoint (</div>
<div class="line"><a name="l01283"></a><span class="lineno"> 1283</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__4d_point.html">ON_4dPoint</a>&amp;</div>
<div class="line"><a name="l01284"></a><span class="lineno"> 1284</span>&#160;    );</div>
<div class="line"><a name="l01285"></a><span class="lineno"> 1285</span>&#160;  <span class="keywordtype">bool</span> WriteVector (</div>
<div class="line"><a name="l01286"></a><span class="lineno"> 1286</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__2d_vector.html">ON_2dVector</a>&amp;</div>
<div class="line"><a name="l01287"></a><span class="lineno"> 1287</span>&#160;    );</div>
<div class="line"><a name="l01288"></a><span class="lineno"> 1288</span>&#160;  <span class="keywordtype">bool</span> WriteVector (</div>
<div class="line"><a name="l01289"></a><span class="lineno"> 1289</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__3d_vector.html">ON_3dVector</a>&amp;</div>
<div class="line"><a name="l01290"></a><span class="lineno"> 1290</span>&#160;    );</div>
<div class="line"><a name="l01291"></a><span class="lineno"> 1291</span>&#160; </div>
<div class="line"><a name="l01292"></a><span class="lineno"> 1292</span>&#160;  <span class="keywordtype">bool</span> WriteBoundingBox(<span class="keyword">const</span> <a class="code" href="class_o_n___bounding_box.html">ON_BoundingBox</a>&amp;);</div>
<div class="line"><a name="l01293"></a><span class="lineno"> 1293</span>&#160; </div>
<div class="line"><a name="l01294"></a><span class="lineno"> 1294</span>&#160;  <span class="keywordtype">bool</span> WriteXform(<span class="keyword">const</span> <a class="code" href="class_o_n___xform.html">ON_Xform</a>&amp;);</div>
<div class="line"><a name="l01295"></a><span class="lineno"> 1295</span>&#160; </div>
<div class="line"><a name="l01296"></a><span class="lineno"> 1296</span>&#160;  <span class="keywordtype">bool</span> WritePlaneEquation(<span class="keyword">const</span> <a class="code" href="class_o_n___plane_equation.html">ON_PlaneEquation</a>&amp;);</div>
<div class="line"><a name="l01297"></a><span class="lineno"> 1297</span>&#160; </div>
<div class="line"><a name="l01298"></a><span class="lineno"> 1298</span>&#160;  <span class="keywordtype">bool</span> WritePlane(<span class="keyword">const</span> <a class="code" href="class_o_n___plane.html">ON_Plane</a>&amp;);</div>
<div class="line"><a name="l01299"></a><span class="lineno"> 1299</span>&#160; </div>
<div class="line"><a name="l01300"></a><span class="lineno"> 1300</span>&#160;  <span class="keywordtype">bool</span> WriteLine(<span class="keyword">const</span> <a class="code" href="class_o_n___line.html">ON_Line</a>&amp;);</div>
<div class="line"><a name="l01301"></a><span class="lineno"> 1301</span>&#160; </div>
<div class="line"><a name="l01302"></a><span class="lineno"> 1302</span>&#160;  <span class="keywordtype">bool</span> WriteArc(<span class="keyword">const</span> <a class="code" href="class_o_n___arc.html">ON_Arc</a>&amp;);</div>
<div class="line"><a name="l01303"></a><span class="lineno"> 1303</span>&#160; </div>
<div class="line"><a name="l01304"></a><span class="lineno"> 1304</span>&#160;  <span class="keywordtype">bool</span> WriteCircle(<span class="keyword">const</span> <a class="code" href="class_o_n___circle.html">ON_Circle</a>&amp;);</div>
<div class="line"><a name="l01305"></a><span class="lineno"> 1305</span>&#160; </div>
<div class="line"><a name="l01306"></a><span class="lineno"> 1306</span>&#160;  <span class="keywordtype">bool</span> WriteInterval( <span class="keyword">const</span> <a class="code" href="class_o_n___interval.html">ON_Interval</a>&amp; );</div>
<div class="line"><a name="l01307"></a><span class="lineno"> 1307</span>&#160; </div>
<div class="line"><a name="l01308"></a><span class="lineno"> 1308</span>&#160;  <span class="keywordtype">bool</span> WriteUuid( <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; );</div>
<div class="line"><a name="l01309"></a><span class="lineno"> 1309</span>&#160; </div>
<div class="line"><a name="l01310"></a><span class="lineno"> 1310</span>&#160;  <span class="keywordtype">bool</span> WriteDisplayMaterialRef( <span class="keyword">const</span> <a class="code" href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a>&amp; );</div>
<div class="line"><a name="l01311"></a><span class="lineno"> 1311</span>&#160; </div>
<div class="line"><a name="l01312"></a><span class="lineno"> 1312</span>&#160;  <span class="keywordtype">bool</span> WriteLinetypeSegment( <span class="keyword">const</span> <a class="code" href="class_o_n___linetype_segment.html">ON_LinetypeSegment</a>&amp; );</div>
<div class="line"><a name="l01313"></a><span class="lineno"> 1313</span>&#160; </div>
<div class="line"><a name="l01314"></a><span class="lineno"> 1314</span>&#160;  <span class="comment">// All times are stored in universal coordinated time</span></div>
<div class="line"><a name="l01315"></a><span class="lineno"> 1315</span>&#160;  <span class="comment">// ( a.k.a GMT, UCT ).  Use ANSI C time() and gmtime() calls.</span></div>
<div class="line"><a name="l01316"></a><span class="lineno"> 1316</span>&#160;  <span class="keywordtype">bool</span> WriteTime( <span class="keyword">const</span> <span class="keyword">struct</span> tm&amp; );</div>
<div class="line"><a name="l01317"></a><span class="lineno"> 1317</span>&#160; </div>
<div class="line"><a name="l01318"></a><span class="lineno"> 1318</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01319"></a><span class="lineno"> 1319</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01320"></a><span class="lineno"> 1320</span>&#160;<span class="comment">    sUTF8 - [in]</span></div>
<div class="line"><a name="l01321"></a><span class="lineno"> 1321</span>&#160;<span class="comment">      A null terminated UTF-8 encoded unicode string.</span></div>
<div class="line"><a name="l01322"></a><span class="lineno"> 1322</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l01323"></a><span class="lineno"> 1323</span>&#160;<span class="comment">    To read a string written with WriteString(const char*),</span></div>
<div class="line"><a name="l01324"></a><span class="lineno"> 1324</span>&#160;<span class="comment">    call ReadStringUTF8ElementCount(&amp;string_utf8_element_count)</span></div>
<div class="line"><a name="l01325"></a><span class="lineno"> 1325</span>&#160;<span class="comment">    to get the number of char elements written in the file,</span></div>
<div class="line"><a name="l01326"></a><span class="lineno"> 1326</span>&#160;<span class="comment">    obtain a buffer with at least string_utf8_element_count</span></div>
<div class="line"><a name="l01327"></a><span class="lineno"> 1327</span>&#160;<span class="comment">    char elements and then call </span></div>
<div class="line"><a name="l01328"></a><span class="lineno"> 1328</span>&#160;<span class="comment">    ReadString(string_utf8_element_count,buffer) to read the</span></div>
<div class="line"><a name="l01329"></a><span class="lineno"> 1329</span>&#160;<span class="comment">    char elements.</span></div>
<div class="line"><a name="l01330"></a><span class="lineno"> 1330</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01331"></a><span class="lineno"> 1331</span>&#160;<span class="comment">    If 0 == sUTF8 or 0 == SUTF8[0], a 4 byte int with</span></div>
<div class="line"><a name="l01332"></a><span class="lineno"> 1332</span>&#160;<span class="comment">    value = 0 is written, otherwise a 4 byte int with</span></div>
<div class="line"><a name="l01333"></a><span class="lineno"> 1333</span>&#160;<span class="comment">    value = strlen + 1 is written, followed by the string,</span></div>
<div class="line"><a name="l01334"></a><span class="lineno"> 1334</span>&#160;<span class="comment">    followed by the null terminator.</span></div>
<div class="line"><a name="l01335"></a><span class="lineno"> 1335</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01336"></a><span class="lineno"> 1336</span>&#160;  <span class="keywordtype">bool</span> WriteString(</div>
<div class="line"><a name="l01337"></a><span class="lineno"> 1337</span>&#160;      <span class="keyword">const</span> <span class="keywordtype">char</span>* sUTF8         </div>
<div class="line"><a name="l01338"></a><span class="lineno"> 1338</span>&#160;      );</div>
<div class="line"><a name="l01339"></a><span class="lineno"> 1339</span>&#160; </div>
<div class="line"><a name="l01340"></a><span class="lineno"> 1340</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01341"></a><span class="lineno"> 1341</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01342"></a><span class="lineno"> 1342</span>&#160;<span class="comment">    sUTF8 - [in]</span></div>
<div class="line"><a name="l01343"></a><span class="lineno"> 1343</span>&#160;<span class="comment">      A null terminated UTF-8 encoded unicode string.</span></div>
<div class="line"><a name="l01344"></a><span class="lineno"> 1344</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l01345"></a><span class="lineno"> 1345</span>&#160;<span class="comment">    To read a string written with WriteString(const unsigned char*),</span></div>
<div class="line"><a name="l01346"></a><span class="lineno"> 1346</span>&#160;<span class="comment">    call ReadStringUTF8ElementCount(&amp;string_utf8_element_count) to</span></div>
<div class="line"><a name="l01347"></a><span class="lineno"> 1347</span>&#160;<span class="comment">    get the number of unsigned char elements written in the file,</span></div>
<div class="line"><a name="l01348"></a><span class="lineno"> 1348</span>&#160;<span class="comment">    obtain a buffer with at least string_utf8_element_count</span></div>
<div class="line"><a name="l01349"></a><span class="lineno"> 1349</span>&#160;<span class="comment">    unsigned char elements and then call </span></div>
<div class="line"><a name="l01350"></a><span class="lineno"> 1350</span>&#160;<span class="comment">    ReadString(string_utf8_element_count,buffer) to read the </span></div>
<div class="line"><a name="l01351"></a><span class="lineno"> 1351</span>&#160;<span class="comment">    unsigned charelements.</span></div>
<div class="line"><a name="l01352"></a><span class="lineno"> 1352</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01353"></a><span class="lineno"> 1353</span>&#160;<span class="comment">    If 0 == sUTF8 or 0 == SUTF8[0], a 4 byte int with</span></div>
<div class="line"><a name="l01354"></a><span class="lineno"> 1354</span>&#160;<span class="comment">    value = 0 is written, otherwise a 4 byte int with</span></div>
<div class="line"><a name="l01355"></a><span class="lineno"> 1355</span>&#160;<span class="comment">    value = strlen + 1 is written, followed by the string,</span></div>
<div class="line"><a name="l01356"></a><span class="lineno"> 1356</span>&#160;<span class="comment">    followed by the null terminator.</span></div>
<div class="line"><a name="l01357"></a><span class="lineno"> 1357</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01358"></a><span class="lineno"> 1358</span>&#160;  <span class="keywordtype">bool</span> WriteString(</div>
<div class="line"><a name="l01359"></a><span class="lineno"> 1359</span>&#160;      <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* sUTF8</div>
<div class="line"><a name="l01360"></a><span class="lineno"> 1360</span>&#160;      );</div>
<div class="line"><a name="l01361"></a><span class="lineno"> 1361</span>&#160; </div>
<div class="line"><a name="l01362"></a><span class="lineno"> 1362</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01363"></a><span class="lineno"> 1363</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01364"></a><span class="lineno"> 1364</span>&#160;<span class="comment">    sUTF16 - [in]</span></div>
<div class="line"><a name="l01365"></a><span class="lineno"> 1365</span>&#160;<span class="comment">      A null terminated UTF-16 encoded unicode string.</span></div>
<div class="line"><a name="l01366"></a><span class="lineno"> 1366</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l01367"></a><span class="lineno"> 1367</span>&#160;<span class="comment">    To read a string written with WriteString(const unsigned short*),</span></div>
<div class="line"><a name="l01368"></a><span class="lineno"> 1368</span>&#160;<span class="comment">    call ReadStringUTF16ElementCount(&amp;string_utf16_element_count) to</span></div>
<div class="line"><a name="l01369"></a><span class="lineno"> 1369</span>&#160;<span class="comment">    get the number of unsigned short elements written in the file,</span></div>
<div class="line"><a name="l01370"></a><span class="lineno"> 1370</span>&#160;<span class="comment">    obtain a buffer with at least string_utf16_element_count</span></div>
<div class="line"><a name="l01371"></a><span class="lineno"> 1371</span>&#160;<span class="comment">    unsigned short elements and then call </span></div>
<div class="line"><a name="l01372"></a><span class="lineno"> 1372</span>&#160;<span class="comment">    ReadString(string_utf16_element_count,buffer) to read the</span></div>
<div class="line"><a name="l01373"></a><span class="lineno"> 1373</span>&#160;<span class="comment">    unsigned short elements.</span></div>
<div class="line"><a name="l01374"></a><span class="lineno"> 1374</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01375"></a><span class="lineno"> 1375</span>&#160;<span class="comment">    If 0 == sUTF8 or 0 == SUTF8[0], a 4 byte int with</span></div>
<div class="line"><a name="l01376"></a><span class="lineno"> 1376</span>&#160;<span class="comment">    value = 0 is written, otherwise a 4 byte int with</span></div>
<div class="line"><a name="l01377"></a><span class="lineno"> 1377</span>&#160;<span class="comment">    value = strlen + 1 is written, followed by the string,</span></div>
<div class="line"><a name="l01378"></a><span class="lineno"> 1378</span>&#160;<span class="comment">    followed by the null terminator.</span></div>
<div class="line"><a name="l01379"></a><span class="lineno"> 1379</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01380"></a><span class="lineno"> 1380</span>&#160;  <span class="keywordtype">bool</span> WriteString(</div>
<div class="line"><a name="l01381"></a><span class="lineno"> 1381</span>&#160;      <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>* sUTF16</div>
<div class="line"><a name="l01382"></a><span class="lineno"> 1382</span>&#160;      );</div>
<div class="line"><a name="l01383"></a><span class="lineno"> 1383</span>&#160;  </div>
<div class="line"><a name="l01384"></a><span class="lineno"> 1384</span>&#160;  <span class="keywordtype">bool</span> WriteString( <span class="keyword">const</span> <a class="code" href="class_o_n___string.html">ON_String</a>&amp; sUTF8 );</div>
<div class="line"><a name="l01385"></a><span class="lineno"> 1385</span>&#160; </div>
<div class="line"><a name="l01386"></a><span class="lineno"> 1386</span>&#160;  <span class="keywordtype">bool</span> WriteString( <span class="keyword">const</span> <a class="code" href="class_o_n__w_string.html">ON_wString</a>&amp; s);</div>
<div class="line"><a name="l01387"></a><span class="lineno"> 1387</span>&#160; </div>
<div class="line"><a name="l01388"></a><span class="lineno"> 1388</span>&#160;  <span class="keywordtype">bool</span> WriteComponentIndex( <span class="keyword">const</span> ON_COMPONENT_INDEX&amp; );</div>
<div class="line"><a name="l01389"></a><span class="lineno"> 1389</span>&#160; </div>
<div class="line"><a name="l01390"></a><span class="lineno"> 1390</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;bool&gt;</a>&amp; );</div>
<div class="line"><a name="l01391"></a><span class="lineno"> 1391</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;char&gt;</a>&amp; );</div>
<div class="line"><a name="l01392"></a><span class="lineno"> 1392</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;short&gt;</a>&amp; );</div>
<div class="line"><a name="l01393"></a><span class="lineno"> 1393</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;int&gt;</a>&amp; );</div>
<div class="line"><a name="l01394"></a><span class="lineno"> 1394</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;float&gt;</a>&amp; );</div>
<div class="line"><a name="l01395"></a><span class="lineno"> 1395</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;double&gt;</a>&amp; );</div>
<div class="line"><a name="l01396"></a><span class="lineno"> 1396</span>&#160; </div>
<div class="line"><a name="l01397"></a><span class="lineno"> 1397</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_Color&gt;</a>&amp; );</div>
<div class="line"><a name="l01398"></a><span class="lineno"> 1398</span>&#160; </div>
<div class="line"><a name="l01399"></a><span class="lineno"> 1399</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01400"></a><span class="lineno"> 1400</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01401"></a><span class="lineno"> 1401</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_4dPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01402"></a><span class="lineno"> 1402</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2dVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01403"></a><span class="lineno"> 1403</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3dVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01404"></a><span class="lineno"> 1404</span>&#160; </div>
<div class="line"><a name="l01405"></a><span class="lineno"> 1405</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01406"></a><span class="lineno"> 1406</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01407"></a><span class="lineno"> 1407</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_4fPoint&gt;</a>&amp; );</div>
<div class="line"><a name="l01408"></a><span class="lineno"> 1408</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_2fVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01409"></a><span class="lineno"> 1409</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3fVector&gt;</a>&amp; );</div>
<div class="line"><a name="l01410"></a><span class="lineno"> 1410</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_Xform&gt;</a>&amp; );</div>
<div class="line"><a name="l01411"></a><span class="lineno"> 1411</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_UUID&gt;</a>&amp; );</div>
<div class="line"><a name="l01412"></a><span class="lineno"> 1412</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_UuidIndex&gt;</a>&amp; );</div>
<div class="line"><a name="l01413"></a><span class="lineno"> 1413</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_SurfaceCurvature&gt;</a>&amp; );</div>
<div class="line"><a name="l01414"></a><span class="lineno"> 1414</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_String&gt;</a>&amp; );</div>
<div class="line"><a name="l01415"></a><span class="lineno"> 1415</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_wString&gt;</a>&amp; );</div>
<div class="line"><a name="l01416"></a><span class="lineno"> 1416</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_DisplayMaterialRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01417"></a><span class="lineno"> 1417</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_LinetypeSegment&gt;</a>&amp; );  </div>
<div class="line"><a name="l01418"></a><span class="lineno"> 1418</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_MappingChannel&gt;</a>&amp; );</div>
<div class="line"><a name="l01419"></a><span class="lineno"> 1419</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_MaterialRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01420"></a><span class="lineno"> 1420</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;ON_MappingRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01421"></a><span class="lineno"> 1421</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___class_array.html">ON_ClassArray&lt;class ON_ObjRef&gt;</a>&amp; );</div>
<div class="line"><a name="l01422"></a><span class="lineno"> 1422</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;class ON_ObjRef_IRefID&gt;</a>&amp; );</div>
<div class="line"><a name="l01423"></a><span class="lineno"> 1423</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keyword">const</span> <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;class ON_ClippingPlaneInfo&gt;</a>&amp; );</div>
<div class="line"><a name="l01424"></a><span class="lineno"> 1424</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keywordtype">int</span> count, <span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="class_o_n___layer.html">ON_Layer</a>* );</div>
<div class="line"><a name="l01425"></a><span class="lineno"> 1425</span>&#160;  <span class="keywordtype">bool</span> WriteArray( <span class="keywordtype">int</span> count, <span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="class_o_n___layer.html">ON_Layer</a>*<span class="keyword">const</span>* );</div>
<div class="line"><a name="l01426"></a><span class="lineno"> 1426</span>&#160; </div>
<div class="line"><a name="l01428"></a><span class="lineno"> 1428</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01429"></a><span class="lineno"> 1429</span>&#160;  <span class="comment">// Read/Write classes derived from ON_Object</span></div>
<div class="line"><a name="l01430"></a><span class="lineno"> 1430</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01431"></a><span class="lineno"> 1431</span>&#160; </div>
<div class="line"><a name="l01432"></a><span class="lineno"> 1432</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01433"></a><span class="lineno"> 1433</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l01434"></a><span class="lineno"> 1434</span>&#160;<span class="comment">    Reads and object from a 3dm archive;</span></div>
<div class="line"><a name="l01435"></a><span class="lineno"> 1435</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01436"></a><span class="lineno"> 1436</span>&#160;<span class="comment">    ppObject - [out]  object is allocated and a pointer to the</span></div>
<div class="line"><a name="l01437"></a><span class="lineno"> 1437</span>&#160;<span class="comment">                      allocated object is returned as *ppObject;</span></div>
<div class="line"><a name="l01438"></a><span class="lineno"> 1438</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01439"></a><span class="lineno"> 1439</span>&#160;<span class="comment">    0: failure - unable to read object because of file IO problems</span></div>
<div class="line"><a name="l01440"></a><span class="lineno"> 1440</span>&#160;<span class="comment">    1: success</span></div>
<div class="line"><a name="l01441"></a><span class="lineno"> 1441</span>&#160;<span class="comment">    3: unable to read object because it&#39;s UUID is not registered</span></div>
<div class="line"><a name="l01442"></a><span class="lineno"> 1442</span>&#160;<span class="comment">       this could happen in cases where old code is attempting to read</span></div>
<div class="line"><a name="l01443"></a><span class="lineno"> 1443</span>&#160;<span class="comment">       new objects.</span></div>
<div class="line"><a name="l01444"></a><span class="lineno"> 1444</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01445"></a><span class="lineno"> 1445</span>&#160;  <span class="keywordtype">int</span> ReadObject( </div>
<div class="line"><a name="l01446"></a><span class="lineno"> 1446</span>&#160;         <a class="code" href="class_o_n___object.html">ON_Object</a>** ppObject</div>
<div class="line"><a name="l01447"></a><span class="lineno"> 1447</span>&#160;         );</div>
<div class="line"><a name="l01448"></a><span class="lineno"> 1448</span>&#160; </div>
<div class="line"><a name="l01449"></a><span class="lineno"> 1449</span>&#160; </div>
<div class="line"><a name="l01450"></a><span class="lineno"> 1450</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01451"></a><span class="lineno"> 1451</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l01452"></a><span class="lineno"> 1452</span>&#160;<span class="comment">    Reads and object from a 3dm archive.</span></div>
<div class="line"><a name="l01453"></a><span class="lineno"> 1453</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01454"></a><span class="lineno"> 1454</span>&#160;<span class="comment">    object - [in] The value of object.ON_ClassId()-&gt;Uuid() must</span></div>
<div class="line"><a name="l01455"></a><span class="lineno"> 1455</span>&#160;<span class="comment">                  exactly match the class uuid in of the next</span></div>
<div class="line"><a name="l01456"></a><span class="lineno"> 1456</span>&#160;<span class="comment">                  object in the archive.</span></div>
<div class="line"><a name="l01457"></a><span class="lineno"> 1457</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01458"></a><span class="lineno"> 1458</span>&#160;<span class="comment">    0: failure - unable to read object because of file IO problems.</span></div>
<div class="line"><a name="l01459"></a><span class="lineno"> 1459</span>&#160;<span class="comment">    1: success</span></div>
<div class="line"><a name="l01460"></a><span class="lineno"> 1460</span>&#160;<span class="comment">    2: unable to read object because the class id in the archive</span></div>
<div class="line"><a name="l01461"></a><span class="lineno"> 1461</span>&#160;<span class="comment">       did not match pObject-&gt;ClassId.</span></div>
<div class="line"><a name="l01462"></a><span class="lineno"> 1462</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01463"></a><span class="lineno"> 1463</span>&#160;  <span class="keywordtype">int</span> ReadObject( </div>
<div class="line"><a name="l01464"></a><span class="lineno"> 1464</span>&#160;         <a class="code" href="class_o_n___object.html">ON_Object</a>&amp; <span class="keywordtype">object</span></div>
<div class="line"><a name="l01465"></a><span class="lineno"> 1465</span>&#160;         );</div>
<div class="line"><a name="l01466"></a><span class="lineno"> 1466</span>&#160; </div>
<div class="line"><a name="l01467"></a><span class="lineno"> 1467</span>&#160;  <span class="keywordtype">bool</span> WriteObject( <span class="keyword">const</span> <a class="code" href="class_o_n___object.html">ON_Object</a>* ); <span class="comment">// writes object definition</span></div>
<div class="line"><a name="l01468"></a><span class="lineno"> 1468</span>&#160;  <span class="keywordtype">bool</span> WriteObject( <span class="keyword">const</span> <a class="code" href="class_o_n___object.html">ON_Object</a>&amp; ); <span class="comment">// writes object definition</span></div>
<div class="line"><a name="l01469"></a><span class="lineno"> 1469</span>&#160; </div>
<div class="line"><a name="l01470"></a><span class="lineno"> 1470</span>&#160; </div>
<div class="line"><a name="l01473"></a><span class="lineno"> 1473</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01474"></a><span class="lineno"> 1474</span>&#160;  <span class="comment">// 3DM Interface - ignore if not reading/writing a 3DM file</span></div>
<div class="line"><a name="l01475"></a><span class="lineno"> 1475</span>&#160;  <span class="comment">//                 this is here so that the infrastructure</span></div>
<div class="line"><a name="l01476"></a><span class="lineno"> 1476</span>&#160;  <span class="comment">//                 for writing 3dm archives is available for</span></div>
<div class="line"><a name="l01477"></a><span class="lineno"> 1477</span>&#160;  <span class="comment">//                 any type of serialization device.</span></div>
<div class="line"><a name="l01478"></a><span class="lineno"> 1478</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01479"></a><span class="lineno"> 1479</span>&#160;  <span class="keywordtype">bool</span> EnableSave3dmRenderMeshes( ON_BOOL32 = <span class="keyword">true</span> ); <span class="comment">// returns previous state</span></div>
<div class="line"><a name="l01480"></a><span class="lineno"> 1480</span>&#160;  <span class="keywordtype">bool</span> Save3dmRenderMeshes() <span class="keyword">const</span>;</div>
<div class="line"><a name="l01481"></a><span class="lineno"> 1481</span>&#160; </div>
<div class="line"><a name="l01482"></a><span class="lineno"> 1482</span>&#160;  <span class="keywordtype">bool</span> EnableSave3dmAnalysisMeshes( ON_BOOL32 = <span class="keyword">true</span> ); <span class="comment">// returns previous state</span></div>
<div class="line"><a name="l01483"></a><span class="lineno"> 1483</span>&#160;  <span class="keywordtype">bool</span> Save3dmAnalysisMeshes() <span class="keyword">const</span>;</div>
<div class="line"><a name="l01484"></a><span class="lineno"> 1484</span>&#160;  </div>
<div class="line"><a name="l01485"></a><span class="lineno"> 1485</span>&#160;  <span class="keywordtype">bool</span> EnableSaveUserData( ON_BOOL32 = <span class="keyword">true</span> ); <span class="comment">// returns previous state</span></div>
<div class="line"><a name="l01486"></a><span class="lineno"> 1486</span>&#160;  <span class="keywordtype">bool</span> SaveUserData() <span class="keyword">const</span>;</div>
<div class="line"><a name="l01487"></a><span class="lineno"> 1487</span>&#160;  </div>
<div class="line"><a name="l01488"></a><span class="lineno"> 1488</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01489"></a><span class="lineno"> 1489</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01490"></a><span class="lineno"> 1490</span>&#160;<span class="comment">    50 (The Rhino 5.0 opennurbs file version.)</span></div>
<div class="line"><a name="l01491"></a><span class="lineno"> 1491</span>&#160;<span class="comment">    This is the value of version to pass to ON_BinaryArchive</span></div>
<div class="line"><a name="l01492"></a><span class="lineno"> 1492</span>&#160;<span class="comment">    functions like Write3dmStartSection() when you want to use the </span></div>
<div class="line"><a name="l01493"></a><span class="lineno"> 1493</span>&#160;<span class="comment">    the current opennurbs version number and you do not want to have</span></div>
<div class="line"><a name="l01494"></a><span class="lineno"> 1494</span>&#160;<span class="comment">    to update your code when this version number changes.    </span></div>
<div class="line"><a name="l01495"></a><span class="lineno"> 1495</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01496"></a><span class="lineno"> 1496</span>&#160;  <span class="keyword">static</span> <span class="keywordtype">int</span> CurrentArchiveVersion();</div>
<div class="line"><a name="l01497"></a><span class="lineno"> 1497</span>&#160; </div>
<div class="line"><a name="l01499"></a><span class="lineno"> 1499</span>&#160;  <span class="comment">// Step 1: REQUIRED - Write/Read Start Section</span></div>
<div class="line"><a name="l01500"></a><span class="lineno"> 1500</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01501"></a><span class="lineno"> 1501</span>&#160; </div>
<div class="line"><a name="l01502"></a><span class="lineno"> 1502</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01503"></a><span class="lineno"> 1503</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01504"></a><span class="lineno"> 1504</span>&#160;<span class="comment">    version - [in]</span></div>
<div class="line"><a name="l01505"></a><span class="lineno"> 1505</span>&#160;<span class="comment">       0, 2, 3, 4, 5 or 50 (5 is treated as 50)</span></div>
<div class="line"><a name="l01506"></a><span class="lineno"> 1506</span>&#160;<span class="comment">       </span></div>
<div class="line"><a name="l01507"></a><span class="lineno"> 1507</span>&#160;<span class="comment">       If version is 0, then the value of ON_BinaryArchive::CurrentArchiveVersion()</span></div>
<div class="line"><a name="l01508"></a><span class="lineno"> 1508</span>&#160;<span class="comment">       is used.</span></div>
<div class="line"><a name="l01509"></a><span class="lineno"> 1509</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01510"></a><span class="lineno"> 1510</span>&#160;<span class="comment">       Use either 0 or the value of ON_BinaryArchive::CurrentArchiveVersion()</span></div>
<div class="line"><a name="l01511"></a><span class="lineno"> 1511</span>&#160;<span class="comment">       for the version parameter when you want your code to write the most </span></div>
<div class="line"><a name="l01512"></a><span class="lineno"> 1512</span>&#160;<span class="comment">       up to date file version. </span></div>
<div class="line"><a name="l01513"></a><span class="lineno"> 1513</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l01514"></a><span class="lineno"> 1514</span>&#160;<span class="comment">    sStartSectionComment - [in]</span></div>
<div class="line"><a name="l01515"></a><span class="lineno"> 1515</span>&#160;<span class="comment">      NULL or ASCII string with application name, et cetera.</span></div>
<div class="line"><a name="l01516"></a><span class="lineno"> 1516</span>&#160;<span class="comment">      This information is primarily used when debugging files</span></div>
<div class="line"><a name="l01517"></a><span class="lineno"> 1517</span>&#160;<span class="comment">      that contain problems.  McNeel and Associates stores</span></div>
<div class="line"><a name="l01518"></a><span class="lineno"> 1518</span>&#160;<span class="comment">      application name, application version, compile date, </span></div>
<div class="line"><a name="l01519"></a><span class="lineno"> 1519</span>&#160;<span class="comment">      and the OS in use when file was written.</span></div>
<div class="line"><a name="l01520"></a><span class="lineno"> 1520</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01521"></a><span class="lineno"> 1521</span>&#160;  <span class="keywordtype">bool</span> Write3dmStartSection( </div>
<div class="line"><a name="l01522"></a><span class="lineno"> 1522</span>&#160;        <span class="keywordtype">int</span> version,</div>
<div class="line"><a name="l01523"></a><span class="lineno"> 1523</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">char</span>* sStartSectionComment</div>
<div class="line"><a name="l01524"></a><span class="lineno"> 1524</span>&#160;        );</div>
<div class="line"><a name="l01525"></a><span class="lineno"> 1525</span>&#160; </div>
<div class="line"><a name="l01526"></a><span class="lineno"> 1526</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01527"></a><span class="lineno"> 1527</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01528"></a><span class="lineno"> 1528</span>&#160;<span class="comment">    version - [out]</span></div>
<div class="line"><a name="l01529"></a><span class="lineno"> 1529</span>&#160;<span class="comment">       .3dm file version (2, 3, 4, 5 or 50)</span></div>
<div class="line"><a name="l01530"></a><span class="lineno"> 1530</span>&#160;<span class="comment">    sStartSectionComment - [out]</span></div>
<div class="line"><a name="l01531"></a><span class="lineno"> 1531</span>&#160;<span class="comment">      string passed to Write3dmStartSection()</span></div>
<div class="line"><a name="l01532"></a><span class="lineno"> 1532</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01533"></a><span class="lineno"> 1533</span>&#160;  <span class="keywordtype">bool</span> Read3dmStartSection( </div>
<div class="line"><a name="l01534"></a><span class="lineno"> 1534</span>&#160;        <span class="keywordtype">int</span>* version,</div>
<div class="line"><a name="l01535"></a><span class="lineno"> 1535</span>&#160;        <a class="code" href="class_o_n___string.html">ON_String</a>&amp; sStartSectionComment</div>
<div class="line"><a name="l01536"></a><span class="lineno"> 1536</span>&#160;        );</div>
<div class="line"><a name="l01537"></a><span class="lineno"> 1537</span>&#160; </div>
<div class="line"><a name="l01539"></a><span class="lineno"> 1539</span>&#160;  <span class="comment">// Step 2: REQUIRED - Write/Read properties table</span></div>
<div class="line"><a name="l01540"></a><span class="lineno"> 1540</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01541"></a><span class="lineno"> 1541</span>&#160;  <span class="keywordtype">bool</span> Write3dmProperties(</div>
<div class="line"><a name="l01542"></a><span class="lineno"> 1542</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_properties.html">ON_3dmProperties</a>&amp;</div>
<div class="line"><a name="l01543"></a><span class="lineno"> 1543</span>&#160;        );</div>
<div class="line"><a name="l01544"></a><span class="lineno"> 1544</span>&#160;  <span class="keywordtype">bool</span> Read3dmProperties(</div>
<div class="line"><a name="l01545"></a><span class="lineno"> 1545</span>&#160;        <a class="code" href="class_o_n__3dm_properties.html">ON_3dmProperties</a>&amp;</div>
<div class="line"><a name="l01546"></a><span class="lineno"> 1546</span>&#160;        );</div>
<div class="line"><a name="l01547"></a><span class="lineno"> 1547</span>&#160; </div>
<div class="line"><a name="l01549"></a><span class="lineno"> 1549</span>&#160;  <span class="comment">// Step 3: REQUIRED - Write/Read settings table</span></div>
<div class="line"><a name="l01550"></a><span class="lineno"> 1550</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01551"></a><span class="lineno"> 1551</span>&#160;  <span class="keywordtype">bool</span> Write3dmSettings(</div>
<div class="line"><a name="l01552"></a><span class="lineno"> 1552</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_settings.html">ON_3dmSettings</a>&amp;</div>
<div class="line"><a name="l01553"></a><span class="lineno"> 1553</span>&#160;        );</div>
<div class="line"><a name="l01554"></a><span class="lineno"> 1554</span>&#160;  <span class="keywordtype">bool</span> Read3dmSettings(</div>
<div class="line"><a name="l01555"></a><span class="lineno"> 1555</span>&#160;        <a class="code" href="class_o_n__3dm_settings.html">ON_3dmSettings</a>&amp;</div>
<div class="line"><a name="l01556"></a><span class="lineno"> 1556</span>&#160;        );</div>
<div class="line"><a name="l01557"></a><span class="lineno"> 1557</span>&#160; </div>
<div class="line"><a name="l01559"></a><span class="lineno"> 1559</span>&#160;  <span class="comment">// Step 4: REQUIRED - Write/Read bitmap table (it can be empty)</span></div>
<div class="line"><a name="l01560"></a><span class="lineno"> 1560</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01561"></a><span class="lineno"> 1561</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmBitmapTable();</div>
<div class="line"><a name="l01562"></a><span class="lineno"> 1562</span>&#160;  <span class="keywordtype">bool</span> Write3dmBitmap( <span class="keyword">const</span> <a class="code" href="class_o_n___bitmap.html">ON_Bitmap</a>&amp; );</div>
<div class="line"><a name="l01563"></a><span class="lineno"> 1563</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmBitmapTable();</div>
<div class="line"><a name="l01564"></a><span class="lineno"> 1564</span>&#160; </div>
<div class="line"><a name="l01565"></a><span class="lineno"> 1565</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmBitmapTable();</div>
<div class="line"><a name="l01566"></a><span class="lineno"> 1566</span>&#160;  <span class="keywordtype">int</span>  Read3dmBitmap(   <span class="comment">// returns 0 at end of light table</span></div>
<div class="line"><a name="l01567"></a><span class="lineno"> 1567</span>&#160;                        <span class="comment">//         1 bitmap successfully read</span></div>
<div class="line"><a name="l01568"></a><span class="lineno"> 1568</span>&#160;            <a class="code" href="class_o_n___bitmap.html">ON_Bitmap</a>** <span class="comment">// bitmap returned here</span></div>
<div class="line"><a name="l01569"></a><span class="lineno"> 1569</span>&#160;            );</div>
<div class="line"><a name="l01570"></a><span class="lineno"> 1570</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmBitmapTable();</div>
<div class="line"><a name="l01571"></a><span class="lineno"> 1571</span>&#160; </div>
<div class="line"><a name="l01573"></a><span class="lineno"> 1573</span>&#160;  <span class="comment">// Step 5: REQUIRED - Write/Read render material table (it can be empty)</span></div>
<div class="line"><a name="l01574"></a><span class="lineno"> 1574</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01575"></a><span class="lineno"> 1575</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmTextureMappingTable();</div>
<div class="line"><a name="l01576"></a><span class="lineno"> 1576</span>&#160;  <span class="keywordtype">bool</span> Write3dmTextureMapping( <span class="keyword">const</span> <a class="code" href="class_o_n___texture_mapping.html">ON_TextureMapping</a>&amp; );</div>
<div class="line"><a name="l01577"></a><span class="lineno"> 1577</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmTextureMappingTable();</div>
<div class="line"><a name="l01578"></a><span class="lineno"> 1578</span>&#160; </div>
<div class="line"><a name="l01579"></a><span class="lineno"> 1579</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmTextureMappingTable();</div>
<div class="line"><a name="l01580"></a><span class="lineno"> 1580</span>&#160;  <span class="keywordtype">int</span>  Read3dmTextureMapping( <span class="comment">// returns 0 at end of table</span></div>
<div class="line"><a name="l01581"></a><span class="lineno"> 1581</span>&#160;            <a class="code" href="class_o_n___texture_mapping.html">ON_TextureMapping</a>** <span class="comment">// layer returned here</span></div>
<div class="line"><a name="l01582"></a><span class="lineno"> 1582</span>&#160;            );</div>
<div class="line"><a name="l01583"></a><span class="lineno"> 1583</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmTextureMappingTable();</div>
<div class="line"><a name="l01584"></a><span class="lineno"> 1584</span>&#160; </div>
<div class="line"><a name="l01586"></a><span class="lineno"> 1586</span>&#160;  <span class="comment">// Step 6: REQUIRED - Write/Read render material table (it can be empty)</span></div>
<div class="line"><a name="l01587"></a><span class="lineno"> 1587</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01588"></a><span class="lineno"> 1588</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmMaterialTable();</div>
<div class="line"><a name="l01589"></a><span class="lineno"> 1589</span>&#160;  <span class="keywordtype">bool</span> Write3dmMaterial( <span class="keyword">const</span> <a class="code" href="class_o_n___material.html">ON_Material</a>&amp; );</div>
<div class="line"><a name="l01590"></a><span class="lineno"> 1590</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmMaterialTable();</div>
<div class="line"><a name="l01591"></a><span class="lineno"> 1591</span>&#160; </div>
<div class="line"><a name="l01592"></a><span class="lineno"> 1592</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmMaterialTable();</div>
<div class="line"><a name="l01593"></a><span class="lineno"> 1593</span>&#160;  <span class="keywordtype">int</span>  Read3dmMaterial( <span class="comment">// returns 0 at end of table</span></div>
<div class="line"><a name="l01594"></a><span class="lineno"> 1594</span>&#160;            <a class="code" href="class_o_n___material.html">ON_Material</a>** <span class="comment">// layer returned here</span></div>
<div class="line"><a name="l01595"></a><span class="lineno"> 1595</span>&#160;            );</div>
<div class="line"><a name="l01596"></a><span class="lineno"> 1596</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmMaterialTable();</div>
<div class="line"><a name="l01597"></a><span class="lineno"> 1597</span>&#160; </div>
<div class="line"><a name="l01599"></a><span class="lineno"> 1599</span>&#160;  <span class="comment">// Step 7: REQUIRED - Write/Read linetype table (it can be empty)</span></div>
<div class="line"><a name="l01600"></a><span class="lineno"> 1600</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01601"></a><span class="lineno"> 1601</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmLinetypeTable();</div>
<div class="line"><a name="l01602"></a><span class="lineno"> 1602</span>&#160;  <span class="keywordtype">bool</span> Write3dmLinetype( <span class="keyword">const</span> <a class="code" href="class_o_n___linetype.html">ON_Linetype</a>&amp;);</div>
<div class="line"><a name="l01603"></a><span class="lineno"> 1603</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmLinetypeTable();</div>
<div class="line"><a name="l01604"></a><span class="lineno"> 1604</span>&#160; </div>
<div class="line"><a name="l01605"></a><span class="lineno"> 1605</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmLinetypeTable();</div>
<div class="line"><a name="l01606"></a><span class="lineno"> 1606</span>&#160;  <span class="keywordtype">int</span>  Read3dmLinetype(<a class="code" href="class_o_n___linetype.html">ON_Linetype</a>**);</div>
<div class="line"><a name="l01607"></a><span class="lineno"> 1607</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmLinetypeTable();</div>
<div class="line"><a name="l01608"></a><span class="lineno"> 1608</span>&#160; </div>
<div class="line"><a name="l01610"></a><span class="lineno"> 1610</span>&#160;  <span class="comment">// Step 8: REQUIRED - Write/Read layer table (it can be empty)</span></div>
<div class="line"><a name="l01611"></a><span class="lineno"> 1611</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01612"></a><span class="lineno"> 1612</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmLayerTable();</div>
<div class="line"><a name="l01613"></a><span class="lineno"> 1613</span>&#160;  <span class="keywordtype">bool</span> Write3dmLayer( <span class="keyword">const</span> <a class="code" href="class_o_n___layer.html">ON_Layer</a>&amp; );</div>
<div class="line"><a name="l01614"></a><span class="lineno"> 1614</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmLayerTable();</div>
<div class="line"><a name="l01615"></a><span class="lineno"> 1615</span>&#160; </div>
<div class="line"><a name="l01616"></a><span class="lineno"> 1616</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmLayerTable();</div>
<div class="line"><a name="l01617"></a><span class="lineno"> 1617</span>&#160;  <span class="keywordtype">int</span>  Read3dmLayer( <span class="comment">// returns 0 at end of table</span></div>
<div class="line"><a name="l01618"></a><span class="lineno"> 1618</span>&#160;            <a class="code" href="class_o_n___layer.html">ON_Layer</a>** <span class="comment">// layer returned here</span></div>
<div class="line"><a name="l01619"></a><span class="lineno"> 1619</span>&#160;            );</div>
<div class="line"><a name="l01620"></a><span class="lineno"> 1620</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmLayerTable();</div>
<div class="line"><a name="l01621"></a><span class="lineno"> 1621</span>&#160; </div>
<div class="line"><a name="l01623"></a><span class="lineno"> 1623</span>&#160;  <span class="comment">// Step 9: REQUIRED - Write/Read group table (it can be empty)</span></div>
<div class="line"><a name="l01624"></a><span class="lineno"> 1624</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01625"></a><span class="lineno"> 1625</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmGroupTable();</div>
<div class="line"><a name="l01626"></a><span class="lineno"> 1626</span>&#160;  <span class="keywordtype">bool</span> Write3dmGroup( <span class="keyword">const</span> <a class="code" href="class_o_n___group.html">ON_Group</a>&amp; );</div>
<div class="line"><a name="l01627"></a><span class="lineno"> 1627</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmGroupTable();</div>
<div class="line"><a name="l01628"></a><span class="lineno"> 1628</span>&#160; </div>
<div class="line"><a name="l01629"></a><span class="lineno"> 1629</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmGroupTable();</div>
<div class="line"><a name="l01630"></a><span class="lineno"> 1630</span>&#160; </div>
<div class="line"><a name="l01631"></a><span class="lineno"> 1631</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l01632"></a><span class="lineno"> 1632</span>&#160;  <span class="comment">//   Reads groups from group table.  If the group definition is</span></div>
<div class="line"><a name="l01633"></a><span class="lineno"> 1633</span>&#160;  <span class="comment">//   read, a group is created by calling new ON_Group(),</span></div>
<div class="line"><a name="l01634"></a><span class="lineno"> 1634</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01635"></a><span class="lineno"> 1635</span>&#160;  <span class="comment">//   returned.</span></div>
<div class="line"><a name="l01636"></a><span class="lineno"> 1636</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01637"></a><span class="lineno"> 1637</span>&#160;  <span class="comment">// Parameters:</span></div>
<div class="line"><a name="l01638"></a><span class="lineno"> 1638</span>&#160;  <span class="comment">//   ppGroup - If the group definition is</span></div>
<div class="line"><a name="l01639"></a><span class="lineno"> 1639</span>&#160;  <span class="comment">//   read, a group is created by calling new ON_Group(),</span></div>
<div class="line"><a name="l01640"></a><span class="lineno"> 1640</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01641"></a><span class="lineno"> 1641</span>&#160;  <span class="comment">//   a pointer to the new group is returned in *ppGroup.</span></div>
<div class="line"><a name="l01642"></a><span class="lineno"> 1642</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01643"></a><span class="lineno"> 1643</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l01644"></a><span class="lineno"> 1644</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01645"></a><span class="lineno"> 1645</span>&#160;  <span class="comment">//   @untitled table</span></div>
<div class="line"><a name="l01646"></a><span class="lineno"> 1646</span>&#160;  <span class="comment">//   0     at the end of the group table</span></div>
<div class="line"><a name="l01647"></a><span class="lineno"> 1647</span>&#160;  <span class="comment">//   1     group definition was successfully read</span></div>
<div class="line"><a name="l01648"></a><span class="lineno"> 1648</span>&#160;  <span class="comment">//   -1    archive is corrupt at this point</span></div>
<div class="line"><a name="l01649"></a><span class="lineno"> 1649</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01650"></a><span class="lineno"> 1650</span>&#160;  <span class="comment">// Example:</span></div>
<div class="line"><a name="l01651"></a><span class="lineno"> 1651</span>&#160;  <span class="comment">//   Calls to Read3dmGroup need to be bracketed by calls</span></div>
<div class="line"><a name="l01652"></a><span class="lineno"> 1652</span>&#160;  <span class="comment">//   to BeginRead3dmGroupTable() / EndRead3dmGroupTable().</span></div>
<div class="line"><a name="l01653"></a><span class="lineno"> 1653</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01654"></a><span class="lineno"> 1654</span>&#160;  <span class="comment">//           archive.BeginRead3dmGroupTable();</span></div>
<div class="line"><a name="l01655"></a><span class="lineno"> 1655</span>&#160;  <span class="comment">//           ON_Group* pGroup;</span></div>
<div class="line"><a name="l01656"></a><span class="lineno"> 1656</span>&#160;  <span class="comment">//           int rc = 1;</span></div>
<div class="line"><a name="l01657"></a><span class="lineno"> 1657</span>&#160;  <span class="comment">//           while(rc==1)</span></div>
<div class="line"><a name="l01658"></a><span class="lineno"> 1658</span>&#160;  <span class="comment">//           { //</span></div>
<div class="line"><a name="l01659"></a><span class="lineno"> 1659</span>&#160;  <span class="comment">//             pGroup = 0;</span></div>
<div class="line"><a name="l01660"></a><span class="lineno"> 1660</span>&#160;  <span class="comment">//             archive.Read3dmGroup(&amp;pGroup);</span></div>
<div class="line"><a name="l01661"></a><span class="lineno"> 1661</span>&#160;  <span class="comment">//             if ( pGroup )</span></div>
<div class="line"><a name="l01662"></a><span class="lineno"> 1662</span>&#160;  <span class="comment">//               do something with pGroup</span></div>
<div class="line"><a name="l01663"></a><span class="lineno"> 1663</span>&#160;  <span class="comment">//           } //</span></div>
<div class="line"><a name="l01664"></a><span class="lineno"> 1664</span>&#160;  <span class="comment">//           archive.EndRead3dmGroupTable();</span></div>
<div class="line"><a name="l01665"></a><span class="lineno"> 1665</span>&#160;  <span class="comment">//      </span></div>
<div class="line"><a name="l01666"></a><span class="lineno"> 1666</span>&#160;  <span class="keywordtype">int</span>  Read3dmGroup(</div>
<div class="line"><a name="l01667"></a><span class="lineno"> 1667</span>&#160;            <a class="code" href="class_o_n___group.html">ON_Group</a>** <span class="comment">// ppGroup</span></div>
<div class="line"><a name="l01668"></a><span class="lineno"> 1668</span>&#160;            );</div>
<div class="line"><a name="l01669"></a><span class="lineno"> 1669</span>&#160; </div>
<div class="line"><a name="l01670"></a><span class="lineno"> 1670</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmGroupTable();</div>
<div class="line"><a name="l01671"></a><span class="lineno"> 1671</span>&#160; </div>
<div class="line"><a name="l01672"></a><span class="lineno"> 1672</span>&#160; </div>
<div class="line"><a name="l01674"></a><span class="lineno"> 1674</span>&#160;  <span class="comment">// Step 10: REQUIRED - Write/Read font table (it can be empty)</span></div>
<div class="line"><a name="l01675"></a><span class="lineno"> 1675</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01676"></a><span class="lineno"> 1676</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmFontTable();</div>
<div class="line"><a name="l01677"></a><span class="lineno"> 1677</span>&#160;  <span class="keywordtype">bool</span> Write3dmFont( <span class="keyword">const</span> <a class="code" href="class_o_n___font.html">ON_Font</a>&amp; );</div>
<div class="line"><a name="l01678"></a><span class="lineno"> 1678</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmFontTable();</div>
<div class="line"><a name="l01679"></a><span class="lineno"> 1679</span>&#160; </div>
<div class="line"><a name="l01680"></a><span class="lineno"> 1680</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmFontTable();</div>
<div class="line"><a name="l01681"></a><span class="lineno"> 1681</span>&#160; </div>
<div class="line"><a name="l01682"></a><span class="lineno"> 1682</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l01683"></a><span class="lineno"> 1683</span>&#160;  <span class="comment">//   Reads fonts from font table.  If the font definition is</span></div>
<div class="line"><a name="l01684"></a><span class="lineno"> 1684</span>&#160;  <span class="comment">//   read, a font is created by calling new ON_Font(),</span></div>
<div class="line"><a name="l01685"></a><span class="lineno"> 1685</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01686"></a><span class="lineno"> 1686</span>&#160;  <span class="comment">//   returned.</span></div>
<div class="line"><a name="l01687"></a><span class="lineno"> 1687</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01688"></a><span class="lineno"> 1688</span>&#160;  <span class="comment">// Parameters:</span></div>
<div class="line"><a name="l01689"></a><span class="lineno"> 1689</span>&#160;  <span class="comment">//   ppFont - If the font definition is</span></div>
<div class="line"><a name="l01690"></a><span class="lineno"> 1690</span>&#160;  <span class="comment">//   read, a font is created by calling new ON_Font(),</span></div>
<div class="line"><a name="l01691"></a><span class="lineno"> 1691</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01692"></a><span class="lineno"> 1692</span>&#160;  <span class="comment">//   a pointer to the new font is returned in *ppFont.</span></div>
<div class="line"><a name="l01693"></a><span class="lineno"> 1693</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01694"></a><span class="lineno"> 1694</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l01695"></a><span class="lineno"> 1695</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01696"></a><span class="lineno"> 1696</span>&#160;  <span class="comment">//   @untitled table</span></div>
<div class="line"><a name="l01697"></a><span class="lineno"> 1697</span>&#160;  <span class="comment">//   0     at the end of the font table</span></div>
<div class="line"><a name="l01698"></a><span class="lineno"> 1698</span>&#160;  <span class="comment">//   1     font definition was successfully read</span></div>
<div class="line"><a name="l01699"></a><span class="lineno"> 1699</span>&#160;  <span class="comment">//   -1    archive is corrupt at this point</span></div>
<div class="line"><a name="l01700"></a><span class="lineno"> 1700</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01701"></a><span class="lineno"> 1701</span>&#160;  <span class="comment">// Example:</span></div>
<div class="line"><a name="l01702"></a><span class="lineno"> 1702</span>&#160;  <span class="comment">//   Calls to Read3dmFont need to be bracketed by calls</span></div>
<div class="line"><a name="l01703"></a><span class="lineno"> 1703</span>&#160;  <span class="comment">//   to BeginRead3dmFontTable() / EndRead3dmFontTable().</span></div>
<div class="line"><a name="l01704"></a><span class="lineno"> 1704</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01705"></a><span class="lineno"> 1705</span>&#160;  <span class="comment">//           archive.BeginRead3dmFontTable();</span></div>
<div class="line"><a name="l01706"></a><span class="lineno"> 1706</span>&#160;  <span class="comment">//           int rc = 1;</span></div>
<div class="line"><a name="l01707"></a><span class="lineno"> 1707</span>&#160;  <span class="comment">//           ON_Font* pFont;</span></div>
<div class="line"><a name="l01708"></a><span class="lineno"> 1708</span>&#160;  <span class="comment">//           while(rc==1)</span></div>
<div class="line"><a name="l01709"></a><span class="lineno"> 1709</span>&#160;  <span class="comment">//           { //</span></div>
<div class="line"><a name="l01710"></a><span class="lineno"> 1710</span>&#160;  <span class="comment">//             pFont = 0;</span></div>
<div class="line"><a name="l01711"></a><span class="lineno"> 1711</span>&#160;  <span class="comment">//             archive.Read3dmFont(&amp;pFont);</span></div>
<div class="line"><a name="l01712"></a><span class="lineno"> 1712</span>&#160;  <span class="comment">//             if ( pFont )</span></div>
<div class="line"><a name="l01713"></a><span class="lineno"> 1713</span>&#160;  <span class="comment">//               do something with pFont</span></div>
<div class="line"><a name="l01714"></a><span class="lineno"> 1714</span>&#160;  <span class="comment">//           } //</span></div>
<div class="line"><a name="l01715"></a><span class="lineno"> 1715</span>&#160;  <span class="comment">//           archive.EndRead3dmFontTable();</span></div>
<div class="line"><a name="l01716"></a><span class="lineno"> 1716</span>&#160;  <span class="comment">//      </span></div>
<div class="line"><a name="l01717"></a><span class="lineno"> 1717</span>&#160;  <span class="keywordtype">int</span> Read3dmFont(</div>
<div class="line"><a name="l01718"></a><span class="lineno"> 1718</span>&#160;            <a class="code" href="class_o_n___font.html">ON_Font</a>** <span class="comment">// ppFont</span></div>
<div class="line"><a name="l01719"></a><span class="lineno"> 1719</span>&#160;            );</div>
<div class="line"><a name="l01720"></a><span class="lineno"> 1720</span>&#160; </div>
<div class="line"><a name="l01721"></a><span class="lineno"> 1721</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmFontTable();</div>
<div class="line"><a name="l01722"></a><span class="lineno"> 1722</span>&#160; </div>
<div class="line"><a name="l01723"></a><span class="lineno"> 1723</span>&#160; </div>
<div class="line"><a name="l01725"></a><span class="lineno"> 1725</span>&#160;  <span class="comment">// Step 11: REQUIRED - Write/Read dimstyle table (it can be empty)</span></div>
<div class="line"><a name="l01726"></a><span class="lineno"> 1726</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01727"></a><span class="lineno"> 1727</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmDimStyleTable();</div>
<div class="line"><a name="l01728"></a><span class="lineno"> 1728</span>&#160;  <span class="keywordtype">bool</span> Write3dmDimStyle( <span class="keyword">const</span> <a class="code" href="class_o_n___dim_style.html">ON_DimStyle</a>&amp; );</div>
<div class="line"><a name="l01729"></a><span class="lineno"> 1729</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmDimStyleTable();</div>
<div class="line"><a name="l01730"></a><span class="lineno"> 1730</span>&#160; </div>
<div class="line"><a name="l01731"></a><span class="lineno"> 1731</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmDimStyleTable();</div>
<div class="line"><a name="l01732"></a><span class="lineno"> 1732</span>&#160; </div>
<div class="line"><a name="l01733"></a><span class="lineno"> 1733</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l01734"></a><span class="lineno"> 1734</span>&#160;  <span class="comment">//   Reads annotation dimension styles from dimension style table.</span></div>
<div class="line"><a name="l01735"></a><span class="lineno"> 1735</span>&#160;  <span class="comment">//   If the dimension style definition is read, </span></div>
<div class="line"><a name="l01736"></a><span class="lineno"> 1736</span>&#160;  <span class="comment">//   a dimension style is created by calling new ON_DimStyle(),</span></div>
<div class="line"><a name="l01737"></a><span class="lineno"> 1737</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01738"></a><span class="lineno"> 1738</span>&#160;  <span class="comment">//   returned.</span></div>
<div class="line"><a name="l01739"></a><span class="lineno"> 1739</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01740"></a><span class="lineno"> 1740</span>&#160;  <span class="comment">// Parameters:</span></div>
<div class="line"><a name="l01741"></a><span class="lineno"> 1741</span>&#160;  <span class="comment">//   ppDimStyle - If the dimstyle definition is</span></div>
<div class="line"><a name="l01742"></a><span class="lineno"> 1742</span>&#160;  <span class="comment">//   read, a dimstyle is created by calling new ON_DimStyle(),</span></div>
<div class="line"><a name="l01743"></a><span class="lineno"> 1743</span>&#160;  <span class="comment">//   initialized with values stored in the archive, and </span></div>
<div class="line"><a name="l01744"></a><span class="lineno"> 1744</span>&#160;  <span class="comment">//   a pointer to the new dimstyle is returned in *ppDimStyle.</span></div>
<div class="line"><a name="l01745"></a><span class="lineno"> 1745</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01746"></a><span class="lineno"> 1746</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l01747"></a><span class="lineno"> 1747</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01748"></a><span class="lineno"> 1748</span>&#160;  <span class="comment">//   @untitled table</span></div>
<div class="line"><a name="l01749"></a><span class="lineno"> 1749</span>&#160;  <span class="comment">//   0     at the end of the dimension style table</span></div>
<div class="line"><a name="l01750"></a><span class="lineno"> 1750</span>&#160;  <span class="comment">//   1     dimension style definition was successfully read</span></div>
<div class="line"><a name="l01751"></a><span class="lineno"> 1751</span>&#160;  <span class="comment">//   -1    archive is corrupt at this point</span></div>
<div class="line"><a name="l01752"></a><span class="lineno"> 1752</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01753"></a><span class="lineno"> 1753</span>&#160;  <span class="comment">// Example:</span></div>
<div class="line"><a name="l01754"></a><span class="lineno"> 1754</span>&#160;  <span class="comment">//   Calls to Read3dmDimStyle need to be bracketed by calls</span></div>
<div class="line"><a name="l01755"></a><span class="lineno"> 1755</span>&#160;  <span class="comment">//   to BeginRead3dmDimStyleTable() / EndRead3dmDimStyleTable().</span></div>
<div class="line"><a name="l01756"></a><span class="lineno"> 1756</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01757"></a><span class="lineno"> 1757</span>&#160;  <span class="comment">//           archive.BeginRead3dmDimStyleTable();</span></div>
<div class="line"><a name="l01758"></a><span class="lineno"> 1758</span>&#160;  <span class="comment">//           int rc = 1;</span></div>
<div class="line"><a name="l01759"></a><span class="lineno"> 1759</span>&#160;  <span class="comment">//           ON_DimStyle* pDimStyle;</span></div>
<div class="line"><a name="l01760"></a><span class="lineno"> 1760</span>&#160;  <span class="comment">//           while(rc==1)</span></div>
<div class="line"><a name="l01761"></a><span class="lineno"> 1761</span>&#160;  <span class="comment">//           { //</span></div>
<div class="line"><a name="l01762"></a><span class="lineno"> 1762</span>&#160;  <span class="comment">//             pDimStyle = 0;</span></div>
<div class="line"><a name="l01763"></a><span class="lineno"> 1763</span>&#160;  <span class="comment">//             archive.Read3dmDimStyle(&amp;pDimStyle);</span></div>
<div class="line"><a name="l01764"></a><span class="lineno"> 1764</span>&#160;  <span class="comment">//             if ( pDimStyle )</span></div>
<div class="line"><a name="l01765"></a><span class="lineno"> 1765</span>&#160;  <span class="comment">//               do something with pDimStyle</span></div>
<div class="line"><a name="l01766"></a><span class="lineno"> 1766</span>&#160;  <span class="comment">//           } //</span></div>
<div class="line"><a name="l01767"></a><span class="lineno"> 1767</span>&#160;  <span class="comment">//           archive.EndRead3dmDimStyleTable();</span></div>
<div class="line"><a name="l01768"></a><span class="lineno"> 1768</span>&#160;  <span class="comment">//      </span></div>
<div class="line"><a name="l01769"></a><span class="lineno"> 1769</span>&#160;  <span class="keywordtype">int</span> Read3dmDimStyle(</div>
<div class="line"><a name="l01770"></a><span class="lineno"> 1770</span>&#160;            <a class="code" href="class_o_n___dim_style.html">ON_DimStyle</a>** <span class="comment">// ppDimStyle</span></div>
<div class="line"><a name="l01771"></a><span class="lineno"> 1771</span>&#160;            );</div>
<div class="line"><a name="l01772"></a><span class="lineno"> 1772</span>&#160; </div>
<div class="line"><a name="l01773"></a><span class="lineno"> 1773</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmDimStyleTable();</div>
<div class="line"><a name="l01774"></a><span class="lineno"> 1774</span>&#160; </div>
<div class="line"><a name="l01775"></a><span class="lineno"> 1775</span>&#160; </div>
<div class="line"><a name="l01777"></a><span class="lineno"> 1777</span>&#160;  <span class="comment">// Step 12: REQUIRED - Write/Read render light table (it can be empty)</span></div>
<div class="line"><a name="l01778"></a><span class="lineno"> 1778</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01779"></a><span class="lineno"> 1779</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmLightTable();</div>
<div class="line"><a name="l01780"></a><span class="lineno"> 1780</span>&#160;  <span class="keywordtype">bool</span> Write3dmLight( <span class="keyword">const</span> <a class="code" href="class_o_n___light.html">ON_Light</a>&amp;,</div>
<div class="line"><a name="l01781"></a><span class="lineno"> 1781</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>* <span class="comment">// optional</span></div>
<div class="line"><a name="l01782"></a><span class="lineno"> 1782</span>&#160;         );</div>
<div class="line"><a name="l01783"></a><span class="lineno"> 1783</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmLightTable();</div>
<div class="line"><a name="l01784"></a><span class="lineno"> 1784</span>&#160; </div>
<div class="line"><a name="l01785"></a><span class="lineno"> 1785</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmLightTable();</div>
<div class="line"><a name="l01786"></a><span class="lineno"> 1786</span>&#160;  <span class="keywordtype">int</span>  Read3dmLight(  <span class="comment">// returns 0 at end of light table</span></div>
<div class="line"><a name="l01787"></a><span class="lineno"> 1787</span>&#160;                      <span class="comment">//         1 light successfully read</span></div>
<div class="line"><a name="l01788"></a><span class="lineno"> 1788</span>&#160;                      <span class="comment">//        -1 if file is corrupt</span></div>
<div class="line"><a name="l01789"></a><span class="lineno"> 1789</span>&#160;            <a class="code" href="class_o_n___light.html">ON_Light</a>**, <span class="comment">// light returned here</span></div>
<div class="line"><a name="l01790"></a><span class="lineno"> 1790</span>&#160;            <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>* <span class="comment">// optional - if NOT NULL, object attributes are</span></div>
<div class="line"><a name="l01791"></a><span class="lineno"> 1791</span>&#160;                                    <span class="comment">//            returned here</span></div>
<div class="line"><a name="l01792"></a><span class="lineno"> 1792</span>&#160;            );</div>
<div class="line"><a name="l01793"></a><span class="lineno"> 1793</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmLightTable();</div>
<div class="line"><a name="l01794"></a><span class="lineno"> 1794</span>&#160; </div>
<div class="line"><a name="l01795"></a><span class="lineno"> 1795</span>&#160; </div>
<div class="line"><a name="l01797"></a><span class="lineno"> 1797</span>&#160;  <span class="comment">// Step 13: REQUIRED - Write/Read hatch pattern table (it can be empty)</span></div>
<div class="line"><a name="l01798"></a><span class="lineno"> 1798</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01799"></a><span class="lineno"> 1799</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmHatchPatternTable();</div>
<div class="line"><a name="l01800"></a><span class="lineno"> 1800</span>&#160;  <span class="keywordtype">bool</span> Write3dmHatchPattern( <span class="keyword">const</span> <a class="code" href="class_o_n___hatch_pattern.html">ON_HatchPattern</a>&amp;);</div>
<div class="line"><a name="l01801"></a><span class="lineno"> 1801</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmHatchPatternTable();</div>
<div class="line"><a name="l01802"></a><span class="lineno"> 1802</span>&#160; </div>
<div class="line"><a name="l01803"></a><span class="lineno"> 1803</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmHatchPatternTable();</div>
<div class="line"><a name="l01804"></a><span class="lineno"> 1804</span>&#160;  <span class="keywordtype">int</span>  Read3dmHatchPattern(<a class="code" href="class_o_n___hatch_pattern.html">ON_HatchPattern</a>**);</div>
<div class="line"><a name="l01805"></a><span class="lineno"> 1805</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmHatchPatternTable();</div>
<div class="line"><a name="l01806"></a><span class="lineno"> 1806</span>&#160; </div>
<div class="line"><a name="l01808"></a><span class="lineno"> 1808</span>&#160;  <span class="comment">// Step 14: REQUIRED - Write/Read instance definition table (it can be empty)</span></div>
<div class="line"><a name="l01809"></a><span class="lineno"> 1809</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01810"></a><span class="lineno"> 1810</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmInstanceDefinitionTable();</div>
<div class="line"><a name="l01811"></a><span class="lineno"> 1811</span>&#160;  <span class="keywordtype">bool</span> Write3dmInstanceDefinition( <span class="keyword">const</span> <a class="code" href="class_o_n___instance_definition.html">ON_InstanceDefinition</a>&amp; );</div>
<div class="line"><a name="l01812"></a><span class="lineno"> 1812</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmInstanceDefinitionTable();</div>
<div class="line"><a name="l01813"></a><span class="lineno"> 1813</span>&#160; </div>
<div class="line"><a name="l01814"></a><span class="lineno"> 1814</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmInstanceDefinitionTable();</div>
<div class="line"><a name="l01815"></a><span class="lineno"> 1815</span>&#160; </div>
<div class="line"><a name="l01816"></a><span class="lineno"> 1816</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01817"></a><span class="lineno"> 1817</span>&#160;<span class="comment">   Description:</span></div>
<div class="line"><a name="l01818"></a><span class="lineno"> 1818</span>&#160;<span class="comment">     Reads instance definitions from instance defintion table.</span></div>
<div class="line"><a name="l01819"></a><span class="lineno"> 1819</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l01820"></a><span class="lineno"> 1820</span>&#160;<span class="comment">   Parameters:</span></div>
<div class="line"><a name="l01821"></a><span class="lineno"> 1821</span>&#160;<span class="comment">     ppInstanceDefinition - If an instance defintion is</span></div>
<div class="line"><a name="l01822"></a><span class="lineno"> 1822</span>&#160;<span class="comment">     read, an instance defintion is created by calling new </span></div>
<div class="line"><a name="l01823"></a><span class="lineno"> 1823</span>&#160;<span class="comment">     ON_InstanceDefinition(), initialized with values stored</span></div>
<div class="line"><a name="l01824"></a><span class="lineno"> 1824</span>&#160;<span class="comment">     in the archive, and a pointer to the new instance defintion</span></div>
<div class="line"><a name="l01825"></a><span class="lineno"> 1825</span>&#160;<span class="comment">     is returned in *ppInstanceDefinition.</span></div>
<div class="line"><a name="l01826"></a><span class="lineno"> 1826</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l01827"></a><span class="lineno"> 1827</span>&#160;<span class="comment">   Returns:</span></div>
<div class="line"><a name="l01828"></a><span class="lineno"> 1828</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l01829"></a><span class="lineno"> 1829</span>&#160;<span class="comment">     @untitled table</span></div>
<div class="line"><a name="l01830"></a><span class="lineno"> 1830</span>&#160;<span class="comment">     0     at the end of the instance defintion table</span></div>
<div class="line"><a name="l01831"></a><span class="lineno"> 1831</span>&#160;<span class="comment">     1     instance defintion was successfully read</span></div>
<div class="line"><a name="l01832"></a><span class="lineno"> 1832</span>&#160;<span class="comment">     -1    archive is corrupt at this point</span></div>
<div class="line"><a name="l01833"></a><span class="lineno"> 1833</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l01834"></a><span class="lineno"> 1834</span>&#160;<span class="comment">   Example:</span></div>
<div class="line"><a name="l01835"></a><span class="lineno"> 1835</span>&#160;<span class="comment">     Calls to Read3dmInstanceDefinition need to be bracketed by calls</span></div>
<div class="line"><a name="l01836"></a><span class="lineno"> 1836</span>&#160;<span class="comment">     to BeginRead3dmInstanceDefinitionTable() / EndRead3dmInstanceDefinitionTable().</span></div>
<div class="line"><a name="l01837"></a><span class="lineno"> 1837</span>&#160;<span class="comment">  </span></div>
<div class="line"><a name="l01838"></a><span class="lineno"> 1838</span>&#160;<span class="comment">             archive.BeginRead3dmInstanceDefinitionTable();</span></div>
<div class="line"><a name="l01839"></a><span class="lineno"> 1839</span>&#160;<span class="comment">             int rc = 1;</span></div>
<div class="line"><a name="l01840"></a><span class="lineno"> 1840</span>&#160;<span class="comment">             ON_InstanceDefinition* pInstanceDefinition;</span></div>
<div class="line"><a name="l01841"></a><span class="lineno"> 1841</span>&#160;<span class="comment">             while(rc==1)</span></div>
<div class="line"><a name="l01842"></a><span class="lineno"> 1842</span>&#160;<span class="comment">             { </span></div>
<div class="line"><a name="l01843"></a><span class="lineno"> 1843</span>&#160;<span class="comment">               pInstanceDefinition = 0;</span></div>
<div class="line"><a name="l01844"></a><span class="lineno"> 1844</span>&#160;<span class="comment">               archive.Read3dmInstanceDefinition(&amp;pInstanceDefinition);</span></div>
<div class="line"><a name="l01845"></a><span class="lineno"> 1845</span>&#160;<span class="comment">               if ( pInstanceDefinition )</span></div>
<div class="line"><a name="l01846"></a><span class="lineno"> 1846</span>&#160;<span class="comment">                 do something with pInstanceDefinition</span></div>
<div class="line"><a name="l01847"></a><span class="lineno"> 1847</span>&#160;<span class="comment">             } </span></div>
<div class="line"><a name="l01848"></a><span class="lineno"> 1848</span>&#160;<span class="comment">             archive.EndRead3dmInstanceDefinitionTable();</span></div>
<div class="line"><a name="l01849"></a><span class="lineno"> 1849</span>&#160;<span class="comment">  */</span>      </div>
<div class="line"><a name="l01850"></a><span class="lineno"> 1850</span>&#160;  <span class="keywordtype">int</span> Read3dmInstanceDefinition(</div>
<div class="line"><a name="l01851"></a><span class="lineno"> 1851</span>&#160;            <a class="code" href="class_o_n___instance_definition.html">ON_InstanceDefinition</a>** <span class="comment">// ppInstanceDefinition</span></div>
<div class="line"><a name="l01852"></a><span class="lineno"> 1852</span>&#160;            );</div>
<div class="line"><a name="l01853"></a><span class="lineno"> 1853</span>&#160; </div>
<div class="line"><a name="l01854"></a><span class="lineno"> 1854</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmInstanceDefinitionTable();</div>
<div class="line"><a name="l01855"></a><span class="lineno"> 1855</span>&#160; </div>
<div class="line"><a name="l01857"></a><span class="lineno"> 1857</span>&#160;  <span class="comment">// Step 15: REQUIRED - Write/Read geometry and annotation table (it can be empty)</span></div>
<div class="line"><a name="l01858"></a><span class="lineno"> 1858</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01859"></a><span class="lineno"> 1859</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmObjectTable();</div>
<div class="line"><a name="l01860"></a><span class="lineno"> 1860</span>&#160;  <span class="keywordtype">bool</span> Write3dmObject( </div>
<div class="line"><a name="l01861"></a><span class="lineno"> 1861</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n___object.html">ON_Object</a>&amp;,</div>
<div class="line"><a name="l01862"></a><span class="lineno"> 1862</span>&#160;         <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>* <span class="comment">// optional</span></div>
<div class="line"><a name="l01863"></a><span class="lineno"> 1863</span>&#160;         );</div>
<div class="line"><a name="l01864"></a><span class="lineno"> 1864</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmObjectTable();</div>
<div class="line"><a name="l01865"></a><span class="lineno"> 1865</span>&#160; </div>
<div class="line"><a name="l01866"></a><span class="lineno"> 1866</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmObjectTable();</div>
<div class="line"><a name="l01867"></a><span class="lineno"> 1867</span>&#160;  <span class="keywordtype">int</span>  Read3dmObject( <span class="comment">// returns 0 at end of object table</span></div>
<div class="line"><a name="l01868"></a><span class="lineno"> 1868</span>&#160;                      <span class="comment">//         1 if object is read</span></div>
<div class="line"><a name="l01869"></a><span class="lineno"> 1869</span>&#160;                      <span class="comment">//         2 if object is skipped because it does not match filter</span></div>
<div class="line"><a name="l01870"></a><span class="lineno"> 1870</span>&#160;                      <span class="comment">//        -1 if file is corrupt</span></div>
<div class="line"><a name="l01871"></a><span class="lineno"> 1871</span>&#160;          <a class="code" href="class_o_n___object.html">ON_Object</a>**, <span class="comment">// object returned here (NULL if skipped)</span></div>
<div class="line"><a name="l01872"></a><span class="lineno"> 1872</span>&#160;          <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*, <span class="comment">// optional - if NOT NULL, object attributes are</span></div>
<div class="line"><a name="l01873"></a><span class="lineno"> 1873</span>&#160;                                   <span class="comment">//            returned here</span></div>
<div class="line"><a name="l01874"></a><span class="lineno"> 1874</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> = 0 <span class="comment">// optional filter made by setting ON::object_type bits</span></div>
<div class="line"><a name="l01875"></a><span class="lineno"> 1875</span>&#160;          );  <span class="comment">// returns NULL at end of object table</span></div>
<div class="line"><a name="l01876"></a><span class="lineno"> 1876</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmObjectTable();</div>
<div class="line"><a name="l01877"></a><span class="lineno"> 1877</span>&#160; </div>
<div class="line"><a name="l01879"></a><span class="lineno"> 1879</span>&#160;  <span class="comment">// Step 16: REQUIRED - Write/Read history record table (it can be empty)</span></div>
<div class="line"><a name="l01880"></a><span class="lineno"> 1880</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01881"></a><span class="lineno"> 1881</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmHistoryRecordTable();</div>
<div class="line"><a name="l01882"></a><span class="lineno"> 1882</span>&#160;  <span class="keywordtype">bool</span> Write3dmHistoryRecord( </div>
<div class="line"><a name="l01883"></a><span class="lineno"> 1883</span>&#160;         <span class="keyword">const</span> <span class="keyword">class</span> <a class="code" href="class_o_n___history_record.html">ON_HistoryRecord</a>&amp;</div>
<div class="line"><a name="l01884"></a><span class="lineno"> 1884</span>&#160;         );</div>
<div class="line"><a name="l01885"></a><span class="lineno"> 1885</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmHistoryRecordTable();</div>
<div class="line"><a name="l01886"></a><span class="lineno"> 1886</span>&#160; </div>
<div class="line"><a name="l01887"></a><span class="lineno"> 1887</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmHistoryRecordTable();</div>
<div class="line"><a name="l01888"></a><span class="lineno"> 1888</span>&#160; </div>
<div class="line"><a name="l01889"></a><span class="lineno"> 1889</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01890"></a><span class="lineno"> 1890</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01891"></a><span class="lineno"> 1891</span>&#160;<span class="comment">           0 at end of object table</span></div>
<div class="line"><a name="l01892"></a><span class="lineno"> 1892</span>&#160;<span class="comment">           1 if object is read</span></div>
<div class="line"><a name="l01893"></a><span class="lineno"> 1893</span>&#160;<span class="comment">          -1 if file is corrupt</span></div>
<div class="line"><a name="l01894"></a><span class="lineno"> 1894</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01895"></a><span class="lineno"> 1895</span>&#160;  <span class="keywordtype">int</span>  Read3dmHistoryRecord(</div>
<div class="line"><a name="l01896"></a><span class="lineno"> 1896</span>&#160;          <span class="keyword">class</span> <a class="code" href="class_o_n___history_record.html">ON_HistoryRecord</a>*&amp;</div>
<div class="line"><a name="l01897"></a><span class="lineno"> 1897</span>&#160;          );</div>
<div class="line"><a name="l01898"></a><span class="lineno"> 1898</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmHistoryRecordTable();</div>
<div class="line"><a name="l01899"></a><span class="lineno"> 1899</span>&#160; </div>
<div class="line"><a name="l01901"></a><span class="lineno"> 1901</span>&#160;  <span class="comment">// Step 17: OPTIONAL - Write/Read 0 or more user tables</span></div>
<div class="line"><a name="l01902"></a><span class="lineno"> 1902</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l01903"></a><span class="lineno"> 1903</span>&#160; </div>
<div class="line"><a name="l01904"></a><span class="lineno"> 1904</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01905"></a><span class="lineno"> 1905</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l01906"></a><span class="lineno"> 1906</span>&#160;<span class="comment">    Write the user table header information that must precede</span></div>
<div class="line"><a name="l01907"></a><span class="lineno"> 1907</span>&#160;<span class="comment">    the user table information written by a plug-in.</span></div>
<div class="line"><a name="l01908"></a><span class="lineno"> 1908</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01909"></a><span class="lineno"> 1909</span>&#160;<span class="comment">    plugin_id - [in]</span></div>
<div class="line"><a name="l01910"></a><span class="lineno"> 1910</span>&#160;<span class="comment">    bSavingGoo - [in]</span></div>
<div class="line"><a name="l01911"></a><span class="lineno"> 1911</span>&#160;<span class="comment">      Set to false if a plug-in will be used to write</span></div>
<div class="line"><a name="l01912"></a><span class="lineno"> 1912</span>&#160;<span class="comment">      the user table.  Set to true if a user table written by</span></div>
<div class="line"><a name="l01913"></a><span class="lineno"> 1913</span>&#160;<span class="comment">      a missing plug-in is being resaved. In this case,</span></div>
<div class="line"><a name="l01914"></a><span class="lineno"> 1914</span>&#160;<span class="comment">      goo_3dm_version and goo_opennurbs_version must also be</span></div>
<div class="line"><a name="l01915"></a><span class="lineno"> 1915</span>&#160;<span class="comment">      set.  In practice, you should use Write3dmAnonymousUserTableRecord()</span></div>
<div class="line"><a name="l01916"></a><span class="lineno"> 1916</span>&#160;<span class="comment">      to handle writing &quot;goo&quot; and use this function only when</span></div>
<div class="line"><a name="l01917"></a><span class="lineno"> 1917</span>&#160;<span class="comment">      the plug-in in present.</span></div>
<div class="line"><a name="l01918"></a><span class="lineno"> 1918</span>&#160;<span class="comment">    goo_3dm_version - [in]</span></div>
<div class="line"><a name="l01919"></a><span class="lineno"> 1919</span>&#160;<span class="comment">      If bSavingGoo is false, this parameter must be zero and</span></div>
<div class="line"><a name="l01920"></a><span class="lineno"> 1920</span>&#160;<span class="comment">      ON_BinaryArchive::Archive3dmVersion() will be used.</span></div>
<div class="line"><a name="l01921"></a><span class="lineno"> 1921</span>&#160;<span class="comment">      If bSavingGoo is true, this parameter must be the version of </span></div>
<div class="line"><a name="l01922"></a><span class="lineno"> 1922</span>&#160;<span class="comment">      the 3dm archive (1,2,3,4,5,50,...) the plug-in code used to </span></div>
<div class="line"><a name="l01923"></a><span class="lineno"> 1923</span>&#160;<span class="comment">      write the user table.</span></div>
<div class="line"><a name="l01924"></a><span class="lineno"> 1924</span>&#160;<span class="comment">    goo_opennurbs_version - [in]</span></div>
<div class="line"><a name="l01925"></a><span class="lineno"> 1925</span>&#160;<span class="comment">      If bSavingGoo is false, this parameter must be zero and</span></div>
<div class="line"><a name="l01926"></a><span class="lineno"> 1926</span>&#160;<span class="comment">      ON_BinaryArchive::ArchiveOpenNURBSVersion() will be used.</span></div>
<div class="line"><a name="l01927"></a><span class="lineno"> 1927</span>&#160;<span class="comment">      If bSavingGoo is true, this parameter must be the version</span></div>
<div class="line"><a name="l01928"></a><span class="lineno"> 1928</span>&#160;<span class="comment">      of the opennurbs (YYYYMMDDN) the plug-in code used to </span></div>
<div class="line"><a name="l01929"></a><span class="lineno"> 1929</span>&#160;<span class="comment">      write the user table.</span></div>
<div class="line"><a name="l01930"></a><span class="lineno"> 1930</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01931"></a><span class="lineno"> 1931</span>&#160;<span class="comment">    True if the the user information can be written.</span></div>
<div class="line"><a name="l01932"></a><span class="lineno"> 1932</span>&#160;<span class="comment">    False if user informtion should not be written.</span></div>
<div class="line"><a name="l01933"></a><span class="lineno"> 1933</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01934"></a><span class="lineno"> 1934</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmUserTable(</div>
<div class="line"><a name="l01935"></a><span class="lineno"> 1935</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; plugin_id,</div>
<div class="line"><a name="l01936"></a><span class="lineno"> 1936</span>&#160;    <span class="keywordtype">bool</span> bSavingGoo,</div>
<div class="line"><a name="l01937"></a><span class="lineno"> 1937</span>&#160;    <span class="keywordtype">int</span> goo_3dm_version,</div>
<div class="line"><a name="l01938"></a><span class="lineno"> 1938</span>&#160;    <span class="keywordtype">int</span> goo_opennurbs_version</div>
<div class="line"><a name="l01939"></a><span class="lineno"> 1939</span>&#160;    );</div>
<div class="line"><a name="l01940"></a><span class="lineno"> 1940</span>&#160; </div>
<div class="line"><a name="l01941"></a><span class="lineno"> 1941</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmUserTable();</div>
<div class="line"><a name="l01942"></a><span class="lineno"> 1942</span>&#160; </div>
<div class="line"><a name="l01943"></a><span class="lineno"> 1943</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01944"></a><span class="lineno"> 1944</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l01945"></a><span class="lineno"> 1945</span>&#160;<span class="comment">    If Read3dmAnaonymousUserTable() was used to read ON_3dmGoo because a </span></div>
<div class="line"><a name="l01946"></a><span class="lineno"> 1946</span>&#160;<span class="comment">    plug-in was not present, then use Write3dmAnonymousUserTableRecord()</span></div>
<div class="line"><a name="l01947"></a><span class="lineno"> 1947</span>&#160;<span class="comment">    to put than information back into the archive.</span></div>
<div class="line"><a name="l01948"></a><span class="lineno"> 1948</span>&#160;<span class="comment">    Write3dmAnonymousUserTableRecord() writes the entire record.</span></div>
<div class="line"><a name="l01949"></a><span class="lineno"> 1949</span>&#160;<span class="comment">    Do NOT call BeginWrite3dmUserTable() / EndWrite3dmUserTable() when</span></div>
<div class="line"><a name="l01950"></a><span class="lineno"> 1950</span>&#160;<span class="comment">    using Write3dmAnonymousUserTableRecord().</span></div>
<div class="line"><a name="l01951"></a><span class="lineno"> 1951</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01952"></a><span class="lineno"> 1952</span>&#160;<span class="comment">    plugin_id - [in]</span></div>
<div class="line"><a name="l01953"></a><span class="lineno"> 1953</span>&#160;<span class="comment">    goo_version - [in]</span></div>
<div class="line"><a name="l01954"></a><span class="lineno"> 1954</span>&#160;<span class="comment">      The version of the archive (1,2,3,4,5,50,...) that was used when</span></div>
<div class="line"><a name="l01955"></a><span class="lineno"> 1955</span>&#160;<span class="comment">      the plug-in wrote the user table.</span></div>
<div class="line"><a name="l01956"></a><span class="lineno"> 1956</span>&#160;<span class="comment">    goo_opennurbs_version - [in]</span></div>
<div class="line"><a name="l01957"></a><span class="lineno"> 1957</span>&#160;<span class="comment">      The version of opennurbs ( YYYMMDDN ) that was used when the </span></div>
<div class="line"><a name="l01958"></a><span class="lineno"> 1958</span>&#160;<span class="comment">      plug-in wrote the user table.</span></div>
<div class="line"><a name="l01959"></a><span class="lineno"> 1959</span>&#160;<span class="comment">    goo - [in]</span></div>
<div class="line"><a name="l01960"></a><span class="lineno"> 1960</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01961"></a><span class="lineno"> 1961</span>&#160;<span class="comment">    True if the goo was written or skipped because it could not be robustly</span></div>
<div class="line"><a name="l01962"></a><span class="lineno"> 1962</span>&#160;<span class="comment">    saved.  False if a catastrophic IO error occured.</span></div>
<div class="line"><a name="l01963"></a><span class="lineno"> 1963</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01964"></a><span class="lineno"> 1964</span>&#160;  <span class="keywordtype">bool</span> Write3dmAnonymousUserTableRecord( </div>
<div class="line"><a name="l01965"></a><span class="lineno"> 1965</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; plugin_id,</div>
<div class="line"><a name="l01966"></a><span class="lineno"> 1966</span>&#160;    <span class="keywordtype">int</span> goo_3dm_version,</div>
<div class="line"><a name="l01967"></a><span class="lineno"> 1967</span>&#160;    <span class="keywordtype">int</span> goo_opennurbs_version,</div>
<div class="line"><a name="l01968"></a><span class="lineno"> 1968</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; goo</div>
<div class="line"><a name="l01969"></a><span class="lineno"> 1969</span>&#160;    );</div>
<div class="line"><a name="l01970"></a><span class="lineno"> 1970</span>&#160; </div>
<div class="line"><a name="l01971"></a><span class="lineno"> 1971</span>&#160;  <span class="comment">// OBSOLETE - use BeginWrite3dmUserTable(plugin_id, bSavingGoo, 3dm_version, opennurbs_version )</span></div>
<div class="line"><a name="l01972"></a><span class="lineno"> 1972</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> BeginWrite3dmUserTable( <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; );</div>
<div class="line"><a name="l01973"></a><span class="lineno"> 1973</span>&#160; </div>
<div class="line"><a name="l01974"></a><span class="lineno"> 1974</span>&#160;  <span class="comment">// OBSOLETE - use Write3dmAnonymousUserTableRecord(plugin_id, ..., goo)</span></div>
<div class="line"><a name="l01975"></a><span class="lineno"> 1975</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> Write3dmAnonymousUserTable( <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; );</div>
<div class="line"><a name="l01976"></a><span class="lineno"> 1976</span>&#160; </div>
<div class="line"><a name="l01977"></a><span class="lineno"> 1977</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l01978"></a><span class="lineno"> 1978</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l01979"></a><span class="lineno"> 1979</span>&#160;<span class="comment">    plugin_id - [out] </span></div>
<div class="line"><a name="l01980"></a><span class="lineno"> 1980</span>&#160;<span class="comment">      id of plug-in that wrote the user table</span></div>
<div class="line"><a name="l01981"></a><span class="lineno"> 1981</span>&#160;<span class="comment">    bLastSavedAsGoo - [out] </span></div>
<div class="line"><a name="l01982"></a><span class="lineno"> 1982</span>&#160;<span class="comment">      True if this table was saved into this archive as goo because</span></div>
<div class="line"><a name="l01983"></a><span class="lineno"> 1983</span>&#160;<span class="comment">      the plug-in was not present at the time of the save.</span></div>
<div class="line"><a name="l01984"></a><span class="lineno"> 1984</span>&#160;<span class="comment">    archive_3dm_version - [out]</span></div>
<div class="line"><a name="l01985"></a><span class="lineno"> 1985</span>&#160;<span class="comment">      Version of the archive the plug-in wrote to.  When bLastSavedAsGoo</span></div>
<div class="line"><a name="l01986"></a><span class="lineno"> 1986</span>&#160;<span class="comment">      is true, this number can be different from Archive3dmVersion().</span></div>
<div class="line"><a name="l01987"></a><span class="lineno"> 1987</span>&#160;<span class="comment">    archive_opennurbs_version - [out]</span></div>
<div class="line"><a name="l01988"></a><span class="lineno"> 1988</span>&#160;<span class="comment">      Version of opennurbs the plug-in used to write the archive.  </span></div>
<div class="line"><a name="l01989"></a><span class="lineno"> 1989</span>&#160;<span class="comment">      When bLastSavedAsGoo is true, this number can be different </span></div>
<div class="line"><a name="l01990"></a><span class="lineno"> 1990</span>&#160;<span class="comment">      from ArchiveOpenNURBSVersion().     </span></div>
<div class="line"><a name="l01991"></a><span class="lineno"> 1991</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l01992"></a><span class="lineno"> 1992</span>&#160;<span class="comment">    False when there are no more user tables or an IO error occurs.</span></div>
<div class="line"><a name="l01993"></a><span class="lineno"> 1993</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l01994"></a><span class="lineno"> 1994</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmUserTable(</div>
<div class="line"><a name="l01995"></a><span class="lineno"> 1995</span>&#160;    <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp; plugin_id,</div>
<div class="line"><a name="l01996"></a><span class="lineno"> 1996</span>&#160;    <span class="keywordtype">bool</span>* bLastSavedAsGoo,</div>
<div class="line"><a name="l01997"></a><span class="lineno"> 1997</span>&#160;    <span class="keywordtype">int</span>* archive_3dm_version,</div>
<div class="line"><a name="l01998"></a><span class="lineno"> 1998</span>&#160;    <span class="keywordtype">int</span>* archive_opennurbs_version</div>
<div class="line"><a name="l01999"></a><span class="lineno"> 1999</span>&#160;    );</div>
<div class="line"><a name="l02000"></a><span class="lineno"> 2000</span>&#160; </div>
<div class="line"><a name="l02001"></a><span class="lineno"> 2001</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02002"></a><span class="lineno"> 2002</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02003"></a><span class="lineno"> 2003</span>&#160;<span class="comment">    If the plug-in that wrote the user table is not present and you need</span></div>
<div class="line"><a name="l02004"></a><span class="lineno"> 2004</span>&#160;<span class="comment">    to read and resave the user table, then use Read3dmAnonymousUserTable()</span></div>
<div class="line"><a name="l02005"></a><span class="lineno"> 2005</span>&#160;<span class="comment">    to load the information into &quot;goo&quot;.</span></div>
<div class="line"><a name="l02006"></a><span class="lineno"> 2006</span>&#160;<span class="comment">    If you do not need to resave the information, then simply call EndRead3dmUserTable()</span></div>
<div class="line"><a name="l02007"></a><span class="lineno"> 2007</span>&#160;<span class="comment">    to skip over this table.</span></div>
<div class="line"><a name="l02008"></a><span class="lineno"> 2008</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02009"></a><span class="lineno"> 2009</span>&#160;  <span class="keywordtype">bool</span> Read3dmAnonymousUserTable( </div>
<div class="line"><a name="l02010"></a><span class="lineno"> 2010</span>&#160;    <span class="keywordtype">int</span> archive_3dm_version,</div>
<div class="line"><a name="l02011"></a><span class="lineno"> 2011</span>&#160;    <span class="keywordtype">int</span> archive_opennurbs_version,</div>
<div class="line"><a name="l02012"></a><span class="lineno"> 2012</span>&#160;    <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; goo</div>
<div class="line"><a name="l02013"></a><span class="lineno"> 2013</span>&#160;    );</div>
<div class="line"><a name="l02014"></a><span class="lineno"> 2014</span>&#160; </div>
<div class="line"><a name="l02015"></a><span class="lineno"> 2015</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmUserTable();</div>
<div class="line"><a name="l02016"></a><span class="lineno"> 2016</span>&#160; </div>
<div class="line"><a name="l02017"></a><span class="lineno"> 2017</span>&#160;  <span class="comment">// OBSOLETE - use BeginRead3dmUserTable( plugin_id, bLastSavedAsGoo, archive_3dm_version, ... )</span></div>
<div class="line"><a name="l02018"></a><span class="lineno"> 2018</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> BeginRead3dmUserTable(</div>
<div class="line"><a name="l02019"></a><span class="lineno"> 2019</span>&#160;    <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>&amp;</div>
<div class="line"><a name="l02020"></a><span class="lineno"> 2020</span>&#160;    );</div>
<div class="line"><a name="l02021"></a><span class="lineno"> 2021</span>&#160; </div>
<div class="line"><a name="l02022"></a><span class="lineno"> 2022</span>&#160;  <span class="comment">// OBSOLETE - use Read3dmAnonymousUserTable( archive_3dm_version, archive_opennurbs_version, goo )</span></div>
<div class="line"><a name="l02023"></a><span class="lineno"> 2023</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> Read3dmAnonymousUserTable( <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; );</div>
<div class="line"><a name="l02024"></a><span class="lineno"> 2024</span>&#160; </div>
<div class="line"><a name="l02025"></a><span class="lineno"> 2025</span>&#160; </div>
<div class="line"><a name="l02026"></a><span class="lineno"> 2026</span>&#160; </div>
<div class="line"><a name="l02027"></a><span class="lineno"> 2027</span>&#160; </div>
<div class="line"><a name="l02029"></a><span class="lineno"> 2029</span>&#160;  <span class="comment">// Step 18: REQUIRED when writing / OPTIONAL when reading</span></div>
<div class="line"><a name="l02030"></a><span class="lineno"> 2030</span>&#160;  <span class="comment">//         Write end of file marker.  This information is primarily</span></div>
<div class="line"><a name="l02031"></a><span class="lineno"> 2031</span>&#160;  <span class="comment">//         used when debugging files to make sure the end of the file</span></div>
<div class="line"><a name="l02032"></a><span class="lineno"> 2032</span>&#160;  <span class="comment">//         hasn&#39;t been cut off.</span></div>
<div class="line"><a name="l02033"></a><span class="lineno"> 2033</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02034"></a><span class="lineno"> 2034</span>&#160; </div>
<div class="line"><a name="l02035"></a><span class="lineno"> 2035</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l02036"></a><span class="lineno"> 2036</span>&#160;  <span class="comment">//   Writes a TCODE_ENDOFFILE chunk that contains the number</span></div>
<div class="line"><a name="l02037"></a><span class="lineno"> 2037</span>&#160;  <span class="comment">//   of bytes in the archive.</span></div>
<div class="line"><a name="l02038"></a><span class="lineno"> 2038</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02039"></a><span class="lineno"> 2039</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l02040"></a><span class="lineno"> 2040</span>&#160;  <span class="comment">//   true if successful, false if unable to write to archive.</span></div>
<div class="line"><a name="l02041"></a><span class="lineno"> 2041</span>&#160;  <span class="keywordtype">bool</span> Write3dmEndMark();</div>
<div class="line"><a name="l02042"></a><span class="lineno"> 2042</span>&#160; </div>
<div class="line"><a name="l02043"></a><span class="lineno"> 2043</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l02044"></a><span class="lineno"> 2044</span>&#160;  <span class="comment">//   Checks for a TCODE_ENDOFFILE chunk at the current position.</span></div>
<div class="line"><a name="l02045"></a><span class="lineno"> 2045</span>&#160;  <span class="comment">//   If it finds one, it reads it and returns the number</span></div>
<div class="line"><a name="l02046"></a><span class="lineno"> 2046</span>&#160;  <span class="comment">//   of bytes in the archive.  Comparing this number with</span></div>
<div class="line"><a name="l02047"></a><span class="lineno"> 2047</span>&#160;  <span class="comment">//   the current file position can help detect files that</span></div>
<div class="line"><a name="l02048"></a><span class="lineno"> 2048</span>&#160;  <span class="comment">//   have been damaged by loosing sections.</span></div>
<div class="line"><a name="l02049"></a><span class="lineno"> 2049</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02050"></a><span class="lineno"> 2050</span>&#160;  <span class="comment">// Parameters:</span></div>
<div class="line"><a name="l02051"></a><span class="lineno"> 2051</span>&#160;  <span class="comment">//   sizeof_archive - [out] number of bytes written to archive</span></div>
<div class="line"><a name="l02052"></a><span class="lineno"> 2052</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02053"></a><span class="lineno"> 2053</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l02054"></a><span class="lineno"> 2054</span>&#160;  <span class="comment">//   true if successful, false if unable to find or read</span></div>
<div class="line"><a name="l02055"></a><span class="lineno"> 2055</span>&#160;  <span class="comment">//   a TCODE_ENDOFFILE chunk.</span></div>
<div class="line"><a name="l02056"></a><span class="lineno"> 2056</span>&#160;  <span class="keywordtype">bool</span> Read3dmEndMark( </div>
<div class="line"><a name="l02057"></a><span class="lineno"> 2057</span>&#160;           <span class="keywordtype">size_t</span>* <span class="comment">// sizeof_archive</span></div>
<div class="line"><a name="l02058"></a><span class="lineno"> 2058</span>&#160;           );</div>
<div class="line"><a name="l02059"></a><span class="lineno"> 2059</span>&#160; </div>
<div class="line"><a name="l02062"></a><span class="lineno"> 2062</span>&#160;  <span class="comment">// Low level tools to  Write/Read chunks. See opennurbs_3dm.h for details</span></div>
<div class="line"><a name="l02063"></a><span class="lineno"> 2063</span>&#160;  <span class="comment">// about the structure of chunks.  Every chunk must begin with a</span></div>
<div class="line"><a name="l02064"></a><span class="lineno"> 2064</span>&#160;  <span class="comment">// call to BeginWrite/ReadChunk().</span></div>
<div class="line"><a name="l02065"></a><span class="lineno"> 2065</span>&#160;  <span class="comment">// If BeginWriteChunk()/BeginReadChunk() returns true, then</span></div>
<div class="line"><a name="l02066"></a><span class="lineno"> 2066</span>&#160;  <span class="comment">// you must call EndWrite/ReadChunk() or cease using the archive.</span></div>
<div class="line"><a name="l02067"></a><span class="lineno"> 2067</span>&#160; </div>
<div class="line"><a name="l02068"></a><span class="lineno"> 2068</span>&#160;  <span class="comment">// Description:</span></div>
<div class="line"><a name="l02069"></a><span class="lineno"> 2069</span>&#160;  <span class="comment">//   Writes a chunk header containing 4 byte typecode and value.</span></div>
<div class="line"><a name="l02070"></a><span class="lineno"> 2070</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02071"></a><span class="lineno"> 2071</span>&#160;  <span class="comment">// Parameters:</span></div>
<div class="line"><a name="l02072"></a><span class="lineno"> 2072</span>&#160;  <span class="comment">//   typecode - [in] a TCODE_* number from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02073"></a><span class="lineno"> 2073</span>&#160;  <span class="comment">//   value    - [in] if (typecode&amp;TCODE_SHORT) is nonzero, then</span></div>
<div class="line"><a name="l02074"></a><span class="lineno"> 2074</span>&#160;  <span class="comment">//              this is the value to be saved.  Othewise, pass</span></div>
<div class="line"><a name="l02075"></a><span class="lineno"> 2075</span>&#160;  <span class="comment">//              a zero and the EndWrite3dmChunk() call will</span></div>
<div class="line"><a name="l02076"></a><span class="lineno"> 2076</span>&#160;  <span class="comment">//              store the length of the chunk.</span></div>
<div class="line"><a name="l02077"></a><span class="lineno"> 2077</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02078"></a><span class="lineno"> 2078</span>&#160;  <span class="comment">// Returns:</span></div>
<div class="line"><a name="l02079"></a><span class="lineno"> 2079</span>&#160;  <span class="comment">//   true if write was successful.</span></div>
<div class="line"><a name="l02080"></a><span class="lineno"> 2080</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmChunk(</div>
<div class="line"><a name="l02081"></a><span class="lineno"> 2081</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>, <span class="comment">// typecode</span></div>
<div class="line"><a name="l02082"></a><span class="lineno"> 2082</span>&#160;        <span class="keywordtype">int</span> <span class="comment">// value</span></div>
<div class="line"><a name="l02083"></a><span class="lineno"> 2083</span>&#160;        );</div>
<div class="line"><a name="l02084"></a><span class="lineno"> 2084</span>&#160; </div>
<div class="line"><a name="l02085"></a><span class="lineno"> 2085</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmBigChunk(</div>
<div class="line"><a name="l02086"></a><span class="lineno"> 2086</span>&#160;        ON__UINT32 typecode,</div>
<div class="line"><a name="l02087"></a><span class="lineno"> 2087</span>&#160;        ON__INT64 value</div>
<div class="line"><a name="l02088"></a><span class="lineno"> 2088</span>&#160;        );</div>
<div class="line"><a name="l02089"></a><span class="lineno"> 2089</span>&#160; </div>
<div class="line"><a name="l02090"></a><span class="lineno"> 2090</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02091"></a><span class="lineno"> 2091</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02092"></a><span class="lineno"> 2092</span>&#160;<span class="comment">    Begins writing a chunk.</span></div>
<div class="line"><a name="l02093"></a><span class="lineno"> 2093</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02094"></a><span class="lineno"> 2094</span>&#160;<span class="comment">    tcode - [in] chunk&#39;s typecode from opennurbs_3dm.h.  This cannot be a short tcode.</span></div>
<div class="line"><a name="l02095"></a><span class="lineno"> 2095</span>&#160;<span class="comment">    major_version - [in] ( &gt;= 1)</span></div>
<div class="line"><a name="l02096"></a><span class="lineno"> 2096</span>&#160;<span class="comment">    minor_version - [in] ( &gt;= 0 )</span></div>
<div class="line"><a name="l02097"></a><span class="lineno"> 2097</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02098"></a><span class="lineno"> 2098</span>&#160;<span class="comment">    True if input was valid and chunk was started.  In this case</span></div>
<div class="line"><a name="l02099"></a><span class="lineno"> 2099</span>&#160;<span class="comment">    You must call EndWrite3dmChunk(), even if something goes wrong</span></div>
<div class="line"><a name="l02100"></a><span class="lineno"> 2100</span>&#160;<span class="comment">    while you attempt to write the contents of the chunk.</span></div>
<div class="line"><a name="l02101"></a><span class="lineno"> 2101</span>&#160;<span class="comment">    False if input was not valid or the write failed.</span></div>
<div class="line"><a name="l02102"></a><span class="lineno"> 2102</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02103"></a><span class="lineno"> 2103</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmChunk(</div>
<div class="line"><a name="l02104"></a><span class="lineno"> 2104</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tcode,</div>
<div class="line"><a name="l02105"></a><span class="lineno"> 2105</span>&#160;        <span class="keywordtype">int</span> major_version,</div>
<div class="line"><a name="l02106"></a><span class="lineno"> 2106</span>&#160;        <span class="keywordtype">int</span> minor_version</div>
<div class="line"><a name="l02107"></a><span class="lineno"> 2107</span>&#160;        );</div>
<div class="line"><a name="l02108"></a><span class="lineno"> 2108</span>&#160; </div>
<div class="line"><a name="l02109"></a><span class="lineno"> 2109</span>&#160; </div>
<div class="line"><a name="l02110"></a><span class="lineno"> 2110</span>&#160;  <span class="comment">// updates length in chunk header</span></div>
<div class="line"><a name="l02111"></a><span class="lineno"> 2111</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmChunk();</div>
<div class="line"><a name="l02112"></a><span class="lineno"> 2112</span>&#160; </div>
<div class="line"><a name="l02113"></a><span class="lineno"> 2113</span>&#160;  <span class="keywordtype">bool</span> Write3dmGoo( <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; ); <span class="comment">// call to write &quot;goo&quot;</span></div>
<div class="line"><a name="l02114"></a><span class="lineno"> 2114</span>&#160; </div>
<div class="line"><a name="l02115"></a><span class="lineno"> 2115</span>&#160;  <span class="comment">// OBSOLETE - Use BeginRead3dmBigChunk()</span></div>
<div class="line"><a name="l02116"></a><span class="lineno"> 2116</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> BeginRead3dmChunk(</div>
<div class="line"><a name="l02117"></a><span class="lineno"> 2117</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*,   <span class="comment">// typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02118"></a><span class="lineno"> 2118</span>&#160;        <span class="keywordtype">int</span>*             <span class="comment">// value</span></div>
<div class="line"><a name="l02119"></a><span class="lineno"> 2119</span>&#160;        );</div>
<div class="line"><a name="l02120"></a><span class="lineno"> 2120</span>&#160; </div>
<div class="line"><a name="l02121"></a><span class="lineno"> 2121</span>&#160;  <span class="comment">// When the end of the 3dm file is reached, BeginReadChunk() will</span></div>
<div class="line"><a name="l02122"></a><span class="lineno"> 2122</span>&#160;  <span class="comment">// return true with a typecode of TCODE_ENDOFFILE.</span></div>
<div class="line"><a name="l02123"></a><span class="lineno"> 2123</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmBigChunk(</div>
<div class="line"><a name="l02124"></a><span class="lineno"> 2124</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*,   <span class="comment">// typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02125"></a><span class="lineno"> 2125</span>&#160;        ON__INT64*       <span class="comment">// value</span></div>
<div class="line"><a name="l02126"></a><span class="lineno"> 2126</span>&#160;        );</div>
<div class="line"><a name="l02127"></a><span class="lineno"> 2127</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02128"></a><span class="lineno"> 2128</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02129"></a><span class="lineno"> 2129</span>&#160;<span class="comment">    Begins reading a chunk that must be in the archive at this location.</span></div>
<div class="line"><a name="l02130"></a><span class="lineno"> 2130</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02131"></a><span class="lineno"> 2131</span>&#160;<span class="comment">    expected_tcode - [in] chunk&#39;s typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02132"></a><span class="lineno"> 2132</span>&#160;<span class="comment">    major_version - [out] </span></div>
<div class="line"><a name="l02133"></a><span class="lineno"> 2133</span>&#160;<span class="comment">    minor_version - [out] </span></div>
<div class="line"><a name="l02134"></a><span class="lineno"> 2134</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02135"></a><span class="lineno"> 2135</span>&#160;<span class="comment">    True if beginning of the chunk was read.  In this case</span></div>
<div class="line"><a name="l02136"></a><span class="lineno"> 2136</span>&#160;<span class="comment">    You must call EndRead3dmChunk(), even if something goes wrong</span></div>
<div class="line"><a name="l02137"></a><span class="lineno"> 2137</span>&#160;<span class="comment">    while you attempt to read the interior of the chunk.</span></div>
<div class="line"><a name="l02138"></a><span class="lineno"> 2138</span>&#160;<span class="comment">    False if the chunk did not exist at the current location in the file.</span></div>
<div class="line"><a name="l02139"></a><span class="lineno"> 2139</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02140"></a><span class="lineno"> 2140</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmChunk(</div>
<div class="line"><a name="l02141"></a><span class="lineno"> 2141</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> expected_tcode,</div>
<div class="line"><a name="l02142"></a><span class="lineno"> 2142</span>&#160;        <span class="keywordtype">int</span>* major_version,</div>
<div class="line"><a name="l02143"></a><span class="lineno"> 2143</span>&#160;        <span class="keywordtype">int</span>* minor_version</div>
<div class="line"><a name="l02144"></a><span class="lineno"> 2144</span>&#160;        );</div>
<div class="line"><a name="l02145"></a><span class="lineno"> 2145</span>&#160; </div>
<div class="line"><a name="l02146"></a><span class="lineno"> 2146</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02147"></a><span class="lineno"> 2147</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02148"></a><span class="lineno"> 2148</span>&#160;<span class="comment">    Calling this will skip rest of stuff in chunk if it was only partially read.</span></div>
<div class="line"><a name="l02149"></a><span class="lineno"> 2149</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02150"></a><span class="lineno"> 2150</span>&#160;<span class="comment">    bSupressPartiallyReadChunkWarning - [in]</span></div>
<div class="line"><a name="l02151"></a><span class="lineno"> 2151</span>&#160;<span class="comment">      Generally, a call to ON_WARNING is made when a chunk is partially</span></div>
<div class="line"><a name="l02152"></a><span class="lineno"> 2152</span>&#160;<span class="comment">      read.  If bSupressPartiallyReadChunkWarning is true, then</span></div>
<div class="line"><a name="l02153"></a><span class="lineno"> 2153</span>&#160;<span class="comment">      no warning is issued for partially read chunks.</span></div>
<div class="line"><a name="l02154"></a><span class="lineno"> 2154</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02155"></a><span class="lineno"> 2155</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmChunk(); </div>
<div class="line"><a name="l02156"></a><span class="lineno"> 2156</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmChunk(<span class="keywordtype">bool</span> bSupressPartiallyReadChunkWarning); </div>
<div class="line"><a name="l02157"></a><span class="lineno"> 2157</span>&#160; </div>
<div class="line"><a name="l02158"></a><span class="lineno"> 2158</span>&#160; </div>
<div class="line"><a name="l02160"></a><span class="lineno"> 2160</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02161"></a><span class="lineno"> 2161</span>&#160;  <span class="comment">// Tools for dictionary IO (used in .NET)</span></div>
<div class="line"><a name="l02162"></a><span class="lineno"> 2162</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02163"></a><span class="lineno"> 2163</span>&#160; </div>
<div class="line"><a name="l02164"></a><span class="lineno"> 2164</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02165"></a><span class="lineno"> 2165</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02166"></a><span class="lineno"> 2166</span>&#160;<span class="comment">    Begins writing a dictionary.</span></div>
<div class="line"><a name="l02167"></a><span class="lineno"> 2167</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02168"></a><span class="lineno"> 2168</span>&#160;<span class="comment">    dictionary_id - [in]</span></div>
<div class="line"><a name="l02169"></a><span class="lineno"> 2169</span>&#160;<span class="comment">    version - [in]</span></div>
<div class="line"><a name="l02170"></a><span class="lineno"> 2170</span>&#160;<span class="comment">      It is suggested that you use YYYYMMDD as the version number.</span></div>
<div class="line"><a name="l02171"></a><span class="lineno"> 2171</span>&#160;<span class="comment">    dictionary_name - [in]</span></div>
<div class="line"><a name="l02172"></a><span class="lineno"> 2172</span>&#160;<span class="comment">      You may pass NULL.</span></div>
<div class="line"><a name="l02173"></a><span class="lineno"> 2173</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02174"></a><span class="lineno"> 2174</span>&#160;<span class="comment">    Begins a new chunk with tcode TCODE_DICTIONARY and then writes</span></div>
<div class="line"><a name="l02175"></a><span class="lineno"> 2175</span>&#160;<span class="comment">    a TCODE_DICTIONARY_ID chunk containing the id, version and name.</span></div>
<div class="line"><a name="l02176"></a><span class="lineno"> 2176</span>&#160;<span class="comment">    After calling this function, you may either write entries by</span></div>
<div class="line"><a name="l02177"></a><span class="lineno"> 2177</span>&#160;<span class="comment">    calling</span></div>
<div class="line"><a name="l02178"></a><span class="lineno"> 2178</span>&#160;<span class="comment">      BeginWriteDictionaryEntry(); </span></div>
<div class="line"><a name="l02179"></a><span class="lineno"> 2179</span>&#160;<span class="comment">      write entry definition...</span></div>
<div class="line"><a name="l02180"></a><span class="lineno"> 2180</span>&#160;<span class="comment">      EndWriteDictionaryEntry();</span></div>
<div class="line"><a name="l02181"></a><span class="lineno"> 2181</span>&#160;<span class="comment">    or you may finish writing the dictionay by calling</span></div>
<div class="line"><a name="l02182"></a><span class="lineno"> 2182</span>&#160;<span class="comment">      EndWriteDictionary();</span></div>
<div class="line"><a name="l02183"></a><span class="lineno"> 2183</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02184"></a><span class="lineno"> 2184</span>&#160;  <span class="keywordtype">bool</span> BeginWriteDictionary(</div>
<div class="line"><a name="l02185"></a><span class="lineno"> 2185</span>&#160;          <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> dictionary_id,</div>
<div class="line"><a name="l02186"></a><span class="lineno"> 2186</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> version,</div>
<div class="line"><a name="l02187"></a><span class="lineno"> 2187</span>&#160;          <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* dictionary_name</div>
<div class="line"><a name="l02188"></a><span class="lineno"> 2188</span>&#160;          );</div>
<div class="line"><a name="l02189"></a><span class="lineno"> 2189</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02190"></a><span class="lineno"> 2190</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02191"></a><span class="lineno"> 2191</span>&#160;<span class="comment">    Begins writing a dictionary entry.</span></div>
<div class="line"><a name="l02192"></a><span class="lineno"> 2192</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02193"></a><span class="lineno"> 2193</span>&#160;<span class="comment">    de_type - [in]</span></div>
<div class="line"><a name="l02194"></a><span class="lineno"> 2194</span>&#160;<span class="comment">    entry_name - [in]</span></div>
<div class="line"><a name="l02195"></a><span class="lineno"> 2195</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02196"></a><span class="lineno"> 2196</span>&#160;<span class="comment">    true </span></div>
<div class="line"><a name="l02197"></a><span class="lineno"> 2197</span>&#160;<span class="comment">      Entry header was written and you must call EndWriteDictionary()</span></div>
<div class="line"><a name="l02198"></a><span class="lineno"> 2198</span>&#160;<span class="comment">      after writing the entry data.</span></div>
<div class="line"><a name="l02199"></a><span class="lineno"> 2199</span>&#160;<span class="comment">    false </span></div>
<div class="line"><a name="l02200"></a><span class="lineno"> 2200</span>&#160;<span class="comment">      Failed to write entry header.  Do not call EndWriteDictionary().</span></div>
<div class="line"><a name="l02201"></a><span class="lineno"> 2201</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02202"></a><span class="lineno"> 2202</span>&#160;<span class="comment">    Begins a new chunk with tcode TCODE_DICTIONARY_ENTRY,</span></div>
<div class="line"><a name="l02203"></a><span class="lineno"> 2203</span>&#160;<span class="comment">    then writes the int, and then writes the string.</span></div>
<div class="line"><a name="l02204"></a><span class="lineno"> 2204</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02205"></a><span class="lineno"> 2205</span>&#160;  <span class="keywordtype">bool</span> EndWriteDictionary();</div>
<div class="line"><a name="l02206"></a><span class="lineno"> 2206</span>&#160; </div>
<div class="line"><a name="l02207"></a><span class="lineno"> 2207</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02208"></a><span class="lineno"> 2208</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02209"></a><span class="lineno"> 2209</span>&#160;<span class="comment">    Begins writing a dictionary entry.</span></div>
<div class="line"><a name="l02210"></a><span class="lineno"> 2210</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02211"></a><span class="lineno"> 2211</span>&#160;<span class="comment">    de_type - [in]</span></div>
<div class="line"><a name="l02212"></a><span class="lineno"> 2212</span>&#160;<span class="comment">    entry_name - [in]</span></div>
<div class="line"><a name="l02213"></a><span class="lineno"> 2213</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02214"></a><span class="lineno"> 2214</span>&#160;<span class="comment">    true </span></div>
<div class="line"><a name="l02215"></a><span class="lineno"> 2215</span>&#160;<span class="comment">      Entry header was written and you must call EndWriteDictionary()</span></div>
<div class="line"><a name="l02216"></a><span class="lineno"> 2216</span>&#160;<span class="comment">      after writing the entry data.</span></div>
<div class="line"><a name="l02217"></a><span class="lineno"> 2217</span>&#160;<span class="comment">    false </span></div>
<div class="line"><a name="l02218"></a><span class="lineno"> 2218</span>&#160;<span class="comment">      Failed to write entry header.  Do not call EndWriteDictionary().</span></div>
<div class="line"><a name="l02219"></a><span class="lineno"> 2219</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02220"></a><span class="lineno"> 2220</span>&#160;<span class="comment">    Begins a new chunk with tcode TCODE_DICTIONARY_ENTRY,</span></div>
<div class="line"><a name="l02221"></a><span class="lineno"> 2221</span>&#160;<span class="comment">    then writes the int, and then writes the string.</span></div>
<div class="line"><a name="l02222"></a><span class="lineno"> 2222</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02223"></a><span class="lineno"> 2223</span>&#160;  <span class="keywordtype">bool</span> BeginWriteDictionaryEntry(</div>
<div class="line"><a name="l02224"></a><span class="lineno"> 2224</span>&#160;          <span class="keywordtype">int</span> de_type, </div>
<div class="line"><a name="l02225"></a><span class="lineno"> 2225</span>&#160;          <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* entry_name</div>
<div class="line"><a name="l02226"></a><span class="lineno"> 2226</span>&#160;          );</div>
<div class="line"><a name="l02227"></a><span class="lineno"> 2227</span>&#160;  <span class="keywordtype">bool</span> EndWriteDictionaryEntry();</div>
<div class="line"><a name="l02228"></a><span class="lineno"> 2228</span>&#160; </div>
<div class="line"><a name="l02229"></a><span class="lineno"> 2229</span>&#160;  <span class="keywordtype">bool</span> BeginReadDictionary(</div>
<div class="line"><a name="l02230"></a><span class="lineno"> 2230</span>&#160;          <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a>* dictionary_id,</div>
<div class="line"><a name="l02231"></a><span class="lineno"> 2231</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>* version,</div>
<div class="line"><a name="l02232"></a><span class="lineno"> 2232</span>&#160;          <a class="code" href="class_o_n__w_string.html">ON_wString</a>&amp; dictionary_name</div>
<div class="line"><a name="l02233"></a><span class="lineno"> 2233</span>&#160;          );</div>
<div class="line"><a name="l02234"></a><span class="lineno"> 2234</span>&#160;  <span class="keywordtype">bool</span> EndReadDictionary();</div>
<div class="line"><a name="l02235"></a><span class="lineno"> 2235</span>&#160; </div>
<div class="line"><a name="l02236"></a><span class="lineno"> 2236</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02237"></a><span class="lineno"> 2237</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02238"></a><span class="lineno"> 2238</span>&#160;<span class="comment">    Begin reading a dictionary entry.</span></div>
<div class="line"><a name="l02239"></a><span class="lineno"> 2239</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02240"></a><span class="lineno"> 2240</span>&#160;<span class="comment">    de_type - [out]</span></div>
<div class="line"><a name="l02241"></a><span class="lineno"> 2241</span>&#160;<span class="comment">    entry_name - [out]</span></div>
<div class="line"><a name="l02242"></a><span class="lineno"> 2242</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02243"></a><span class="lineno"> 2243</span>&#160;<span class="comment">    0: serious IO error</span></div>
<div class="line"><a name="l02244"></a><span class="lineno"> 2244</span>&#160;<span class="comment">    1: success</span></div>
<div class="line"><a name="l02245"></a><span class="lineno"> 2245</span>&#160;<span class="comment">        read information and then call EndReadDictionaryEntry()</span></div>
<div class="line"><a name="l02246"></a><span class="lineno"> 2246</span>&#160;<span class="comment">    2: at end of dictionary</span></div>
<div class="line"><a name="l02247"></a><span class="lineno"> 2247</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02248"></a><span class="lineno"> 2248</span>&#160;  <span class="keywordtype">int</span> BeginReadDictionaryEntry(</div>
<div class="line"><a name="l02249"></a><span class="lineno"> 2249</span>&#160;          <span class="keywordtype">int</span>* de_type, </div>
<div class="line"><a name="l02250"></a><span class="lineno"> 2250</span>&#160;          <a class="code" href="class_o_n__w_string.html">ON_wString</a>&amp; entry_name</div>
<div class="line"><a name="l02251"></a><span class="lineno"> 2251</span>&#160;          );</div>
<div class="line"><a name="l02252"></a><span class="lineno"> 2252</span>&#160;  <span class="keywordtype">bool</span> EndReadDictionaryEntry();</div>
<div class="line"><a name="l02253"></a><span class="lineno"> 2253</span>&#160; </div>
<div class="line"><a name="l02254"></a><span class="lineno"> 2254</span>&#160;  <span class="keywordtype">bool</span> Read3dmGoo( <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; ); <span class="comment">// Call to read &quot;goo&quot;</span></div>
<div class="line"><a name="l02255"></a><span class="lineno"> 2255</span>&#160; </div>
<div class="line"><a name="l02256"></a><span class="lineno"> 2256</span>&#160;  <span class="comment">// OBSOLETE - Use PeekAt3dmBigChunkType()</span></div>
<div class="line"><a name="l02257"></a><span class="lineno"> 2257</span>&#160;  ON_DEPRECATED <span class="keywordtype">bool</span> PeekAt3dmChunkType( <span class="comment">// does not change file position</span></div>
<div class="line"><a name="l02258"></a><span class="lineno"> 2258</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>*,   <span class="comment">// typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02259"></a><span class="lineno"> 2259</span>&#160;        <span class="keywordtype">int</span>*             <span class="comment">// value</span></div>
<div class="line"><a name="l02260"></a><span class="lineno"> 2260</span>&#160;        );</div>
<div class="line"><a name="l02261"></a><span class="lineno"> 2261</span>&#160; </div>
<div class="line"><a name="l02262"></a><span class="lineno"> 2262</span>&#160;  <span class="keywordtype">bool</span> PeekAt3dmBigChunkType( <span class="comment">// does not change file position</span></div>
<div class="line"><a name="l02263"></a><span class="lineno"> 2263</span>&#160;        ON__UINT32* typecode,</div>
<div class="line"><a name="l02264"></a><span class="lineno"> 2264</span>&#160;        ON__INT64* big_value</div>
<div class="line"><a name="l02265"></a><span class="lineno"> 2265</span>&#160;        );</div>
<div class="line"><a name="l02266"></a><span class="lineno"> 2266</span>&#160; </div>
<div class="line"><a name="l02267"></a><span class="lineno"> 2267</span>&#160;  <span class="keywordtype">bool</span> Seek3dmChunkFromStart( </div>
<div class="line"><a name="l02268"></a><span class="lineno"> 2268</span>&#160;        <span class="comment">// beginning at the start of the active chunk, search portion of</span></div>
<div class="line"><a name="l02269"></a><span class="lineno"> 2269</span>&#160;        <span class="comment">// archive included in active chunk for the start of a subchunk </span></div>
<div class="line"><a name="l02270"></a><span class="lineno"> 2270</span>&#160;        <span class="comment">// with the specified type.</span></div>
<div class="line"><a name="l02271"></a><span class="lineno"> 2271</span>&#160;        <span class="comment">// if true is returned, then the position is set so the next call to</span></div>
<div class="line"><a name="l02272"></a><span class="lineno"> 2272</span>&#160;        <span class="comment">// BeginRead3dmChunk() will read a chunk with the specified typecode</span></div>
<div class="line"><a name="l02273"></a><span class="lineno"> 2273</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>    <span class="comment">// typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02274"></a><span class="lineno"> 2274</span>&#160;        );</div>
<div class="line"><a name="l02275"></a><span class="lineno"> 2275</span>&#160;  <span class="keywordtype">bool</span> Seek3dmChunkFromCurrentPosition( </div>
<div class="line"><a name="l02276"></a><span class="lineno"> 2276</span>&#160;        <span class="comment">// beginning at the current position, search portion of archive</span></div>
<div class="line"><a name="l02277"></a><span class="lineno"> 2277</span>&#160;        <span class="comment">// included in active chunk for the start of a subchunk with the</span></div>
<div class="line"><a name="l02278"></a><span class="lineno"> 2278</span>&#160;        <span class="comment">// specified type.</span></div>
<div class="line"><a name="l02279"></a><span class="lineno"> 2279</span>&#160;        <span class="comment">// if true is returned, then the position is set so the next call to</span></div>
<div class="line"><a name="l02280"></a><span class="lineno"> 2280</span>&#160;        <span class="comment">// BeginRead3dmChunk() will read a chunk with the specified typecode</span></div>
<div class="line"><a name="l02281"></a><span class="lineno"> 2281</span>&#160;        <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>    <span class="comment">// typecode from opennurbs_3dm.h</span></div>
<div class="line"><a name="l02282"></a><span class="lineno"> 2282</span>&#160;        );</div>
<div class="line"><a name="l02283"></a><span class="lineno"> 2283</span>&#160; </div>
<div class="line"><a name="l02284"></a><span class="lineno"> 2284</span>&#160;  <span class="comment">// A chunk version is a single byte that encodes a major.minor </span></div>
<div class="line"><a name="l02285"></a><span class="lineno"> 2285</span>&#160;  <span class="comment">// version number.  Useful when creating I/O code for 3dm chunks</span></div>
<div class="line"><a name="l02286"></a><span class="lineno"> 2286</span>&#160;  <span class="comment">// that may change in the future.  Increment the minor version </span></div>
<div class="line"><a name="l02287"></a><span class="lineno"> 2287</span>&#160;  <span class="comment">// number if new information is added to the end of the chunk. </span></div>
<div class="line"><a name="l02288"></a><span class="lineno"> 2288</span>&#160;  <span class="comment">// Increment the major version if the format of the chunk changes</span></div>
<div class="line"><a name="l02289"></a><span class="lineno"> 2289</span>&#160;  <span class="comment">// in some other way.</span></div>
<div class="line"><a name="l02290"></a><span class="lineno"> 2290</span>&#160;  <span class="keywordtype">bool</span> Write3dmChunkVersion(</div>
<div class="line"><a name="l02291"></a><span class="lineno"> 2291</span>&#160;    <span class="keywordtype">int</span>, <span class="comment">// major // 0 to 15</span></div>
<div class="line"><a name="l02292"></a><span class="lineno"> 2292</span>&#160;    <span class="keywordtype">int</span>  <span class="comment">// minor // 0 to 16</span></div>
<div class="line"><a name="l02293"></a><span class="lineno"> 2293</span>&#160;    );</div>
<div class="line"><a name="l02294"></a><span class="lineno"> 2294</span>&#160;  <span class="keywordtype">bool</span> Read3dmChunkVersion(</div>
<div class="line"><a name="l02295"></a><span class="lineno"> 2295</span>&#160;    <span class="keywordtype">int</span>*, <span class="comment">// major // 0 to 15</span></div>
<div class="line"><a name="l02296"></a><span class="lineno"> 2296</span>&#160;    <span class="keywordtype">int</span>*  <span class="comment">// minor // 0 to 16</span></div>
<div class="line"><a name="l02297"></a><span class="lineno"> 2297</span>&#160;    );</div>
<div class="line"><a name="l02298"></a><span class="lineno"> 2298</span>&#160; </div>
<div class="line"><a name="l02299"></a><span class="lineno"> 2299</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02300"></a><span class="lineno"> 2300</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02301"></a><span class="lineno"> 2301</span>&#160;<span class="comment">    Low level tool to writes user data attached to the </span></div>
<div class="line"><a name="l02302"></a><span class="lineno"> 2302</span>&#160;<span class="comment">    object.  This function should never be called</span></div>
<div class="line"><a name="l02303"></a><span class="lineno"> 2303</span>&#160;<span class="comment">    directly.</span></div>
<div class="line"><a name="l02304"></a><span class="lineno"> 2304</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02305"></a><span class="lineno"> 2305</span>&#160;<span class="comment">    object - [in]</span></div>
<div class="line"><a name="l02306"></a><span class="lineno"> 2306</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02307"></a><span class="lineno"> 2307</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l02308"></a><span class="lineno"> 2308</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02309"></a><span class="lineno"> 2309</span>&#160;  <span class="keywordtype">bool</span> WriteObjectUserData( <span class="keyword">const</span> <a class="code" href="class_o_n___object.html">ON_Object</a>&amp; <span class="keywordtype">object</span> );</div>
<div class="line"><a name="l02310"></a><span class="lineno"> 2310</span>&#160; </div>
<div class="line"><a name="l02311"></a><span class="lineno"> 2311</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02312"></a><span class="lineno"> 2312</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02313"></a><span class="lineno"> 2313</span>&#160;<span class="comment">    Low level tool to read user data and attach it to</span></div>
<div class="line"><a name="l02314"></a><span class="lineno"> 2314</span>&#160;<span class="comment">    the object.  This function should never be called</span></div>
<div class="line"><a name="l02315"></a><span class="lineno"> 2315</span>&#160;<span class="comment">    directly.</span></div>
<div class="line"><a name="l02316"></a><span class="lineno"> 2316</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02317"></a><span class="lineno"> 2317</span>&#160;<span class="comment">    object - [in/out]</span></div>
<div class="line"><a name="l02318"></a><span class="lineno"> 2318</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02319"></a><span class="lineno"> 2319</span>&#160;<span class="comment">    True if successful.</span></div>
<div class="line"><a name="l02320"></a><span class="lineno"> 2320</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02321"></a><span class="lineno"> 2321</span>&#160;  <span class="keywordtype">bool</span> ReadObjectUserData( <a class="code" href="class_o_n___object.html">ON_Object</a>&amp; <span class="keywordtype">object</span> );</div>
<div class="line"><a name="l02322"></a><span class="lineno"> 2322</span>&#160; </div>
<div class="line"><a name="l02323"></a><span class="lineno"> 2323</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02324"></a><span class="lineno"> 2324</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02325"></a><span class="lineno"> 2325</span>&#160;<span class="comment">    If a 3dm archive is being read or written, then this is the</span></div>
<div class="line"><a name="l02326"></a><span class="lineno"> 2326</span>&#160;<span class="comment">    version of the 3dm archive format (1, 2, 3, 4 or 5).</span></div>
<div class="line"><a name="l02327"></a><span class="lineno"> 2327</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02328"></a><span class="lineno"> 2328</span>&#160;<span class="comment">    @untitle table</span></div>
<div class="line"><a name="l02329"></a><span class="lineno"> 2329</span>&#160;<span class="comment">    0     a 3dm archive is not being read/written</span></div>
<div class="line"><a name="l02330"></a><span class="lineno"> 2330</span>&#160;<span class="comment">    1     a version 1 3dm archive is being read/written</span></div>
<div class="line"><a name="l02331"></a><span class="lineno"> 2331</span>&#160;<span class="comment">    2     a version 2 3dm archive is being read/written</span></div>
<div class="line"><a name="l02332"></a><span class="lineno"> 2332</span>&#160;<span class="comment">    3     a version 3 3dm archive is being read/written</span></div>
<div class="line"><a name="l02333"></a><span class="lineno"> 2333</span>&#160;<span class="comment">    4     a version 4 3dm archive is being read/written</span></div>
<div class="line"><a name="l02334"></a><span class="lineno"> 2334</span>&#160;<span class="comment">    5     an old version 5 3dm archive is being read</span></div>
<div class="line"><a name="l02335"></a><span class="lineno"> 2335</span>&#160;<span class="comment">    50    a version 5 3dm archive is being read/written</span></div>
<div class="line"><a name="l02336"></a><span class="lineno"> 2336</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l02337"></a><span class="lineno"> 2337</span>&#160;<span class="comment">    ON_BinaryArchive::ArchiveOpenNURBSVersion</span></div>
<div class="line"><a name="l02338"></a><span class="lineno"> 2338</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02339"></a><span class="lineno"> 2339</span>&#160;  <span class="keywordtype">int</span> Archive3dmVersion() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02340"></a><span class="lineno"> 2340</span>&#160; </div>
<div class="line"><a name="l02341"></a><span class="lineno"> 2341</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02342"></a><span class="lineno"> 2342</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02343"></a><span class="lineno"> 2343</span>&#160;<span class="comment">    If a 3dm archive is being read, then this is the version</span></div>
<div class="line"><a name="l02344"></a><span class="lineno"> 2344</span>&#160;<span class="comment">    of openNURBS that was used to write the archive.  This value</span></div>
<div class="line"><a name="l02345"></a><span class="lineno"> 2345</span>&#160;<span class="comment">    is only available after ON_BinaryArchive::Read3dmProperties</span></div>
<div class="line"><a name="l02346"></a><span class="lineno"> 2346</span>&#160;<span class="comment">    is called.</span></div>
<div class="line"><a name="l02347"></a><span class="lineno"> 2347</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l02348"></a><span class="lineno"> 2348</span>&#160;<span class="comment">    ON_BinaryArchive::Archive3dmVersion</span></div>
<div class="line"><a name="l02349"></a><span class="lineno"> 2349</span>&#160;<span class="comment">    ON_BinaryArchive::Read3dmProperties</span></div>
<div class="line"><a name="l02350"></a><span class="lineno"> 2350</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02351"></a><span class="lineno"> 2351</span>&#160;<span class="comment">    Version of openNURBS used to write the archive.  The openNURBS</span></div>
<div class="line"><a name="l02352"></a><span class="lineno"> 2352</span>&#160;<span class="comment">    version is the value returned by ON::Version.</span></div>
<div class="line"><a name="l02353"></a><span class="lineno"> 2353</span>&#160;<span class="comment">  See Also:</span></div>
<div class="line"><a name="l02354"></a><span class="lineno"> 2354</span>&#160;<span class="comment">    ON::Version</span></div>
<div class="line"><a name="l02355"></a><span class="lineno"> 2355</span>&#160;<span class="comment">    ON_BinaryArchive::Read3dmProperties</span></div>
<div class="line"><a name="l02356"></a><span class="lineno"> 2356</span>&#160;<span class="comment">    ON_BinaryArchive::Archive3dmVersion</span></div>
<div class="line"><a name="l02357"></a><span class="lineno"> 2357</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02358"></a><span class="lineno"> 2358</span>&#160;<span class="comment">    This value is rarely needed.  You probably want to</span></div>
<div class="line"><a name="l02359"></a><span class="lineno"> 2359</span>&#160;<span class="comment">    use ON_BinaryArchive::Archive3dmVersion.</span></div>
<div class="line"><a name="l02360"></a><span class="lineno"> 2360</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02361"></a><span class="lineno"> 2361</span>&#160;  <span class="keywordtype">int</span> ArchiveOpenNURBSVersion() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02362"></a><span class="lineno"> 2362</span>&#160; </div>
<div class="line"><a name="l02363"></a><span class="lineno"> 2363</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02364"></a><span class="lineno"> 2364</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02365"></a><span class="lineno"> 2365</span>&#160;<span class="comment">    When a 3dm archive is saved from an MFC application that</span></div>
<div class="line"><a name="l02366"></a><span class="lineno"> 2366</span>&#160;<span class="comment">    supports Windows linking/embedding, the first 5kb to 1mb</span></div>
<div class="line"><a name="l02367"></a><span class="lineno"> 2367</span>&#160;<span class="comment">    of the file contains information that is put there by MFC.</span></div>
<div class="line"><a name="l02368"></a><span class="lineno"> 2368</span>&#160;<span class="comment">    ArchiveStartOffset() returns the offset into the file where</span></div>
<div class="line"><a name="l02369"></a><span class="lineno"> 2369</span>&#160;<span class="comment">    the 3dm archive actually begins. The call to </span></div>
<div class="line"><a name="l02370"></a><span class="lineno"> 2370</span>&#160;<span class="comment">    ON_BinaryArchive::Read3dmStartSection() calculates this</span></div>
<div class="line"><a name="l02371"></a><span class="lineno"> 2371</span>&#160;<span class="comment">    offset and stores the value in m_3dm_start_section_offset.</span></div>
<div class="line"><a name="l02372"></a><span class="lineno"> 2372</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02373"></a><span class="lineno"> 2373</span>&#160;<span class="comment">    Offset into the binary &quot;file&quot; where the actual 3dm archive</span></div>
<div class="line"><a name="l02374"></a><span class="lineno"> 2374</span>&#160;<span class="comment">    begins.</span></div>
<div class="line"><a name="l02375"></a><span class="lineno"> 2375</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02376"></a><span class="lineno"> 2376</span>&#160;<span class="comment">    Generally, this value can be ignored. This function is</span></div>
<div class="line"><a name="l02377"></a><span class="lineno"> 2377</span>&#160;<span class="comment">    a diagnostice tool that is used to analyzed damaged files.</span></div>
<div class="line"><a name="l02378"></a><span class="lineno"> 2378</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02379"></a><span class="lineno"> 2379</span>&#160;  <span class="keywordtype">size_t</span> ArchiveStartOffset() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02380"></a><span class="lineno"> 2380</span>&#160; </div>
<div class="line"><a name="l02381"></a><span class="lineno"> 2381</span>&#160;  <span class="keyword">enum</span> table_type</div>
<div class="line"><a name="l02382"></a><span class="lineno"> 2382</span>&#160;  {</div>
<div class="line"><a name="l02383"></a><span class="lineno"> 2383</span>&#160;    no_active_table = 0,</div>
<div class="line"><a name="l02384"></a><span class="lineno"> 2384</span>&#160;    properties_table,</div>
<div class="line"><a name="l02385"></a><span class="lineno"> 2385</span>&#160;    settings_table,</div>
<div class="line"><a name="l02386"></a><span class="lineno"> 2386</span>&#160;    bitmap_table,</div>
<div class="line"><a name="l02387"></a><span class="lineno"> 2387</span>&#160;    texture_mapping_table,</div>
<div class="line"><a name="l02388"></a><span class="lineno"> 2388</span>&#160;    material_table,</div>
<div class="line"><a name="l02389"></a><span class="lineno"> 2389</span>&#160;    linetype_table,</div>
<div class="line"><a name="l02390"></a><span class="lineno"> 2390</span>&#160;    layer_table,</div>
<div class="line"><a name="l02391"></a><span class="lineno"> 2391</span>&#160;    light_table,</div>
<div class="line"><a name="l02392"></a><span class="lineno"> 2392</span>&#160;    object_table,</div>
<div class="line"><a name="l02393"></a><span class="lineno"> 2393</span>&#160;    group_table,</div>
<div class="line"><a name="l02394"></a><span class="lineno"> 2394</span>&#160;    font_table,</div>
<div class="line"><a name="l02395"></a><span class="lineno"> 2395</span>&#160;    dimstyle_table,</div>
<div class="line"><a name="l02396"></a><span class="lineno"> 2396</span>&#160;    hatchpattern_table,</div>
<div class="line"><a name="l02397"></a><span class="lineno"> 2397</span>&#160;    instance_definition_table,</div>
<div class="line"><a name="l02398"></a><span class="lineno"> 2398</span>&#160;    historyrecord_table,</div>
<div class="line"><a name="l02399"></a><span class="lineno"> 2399</span>&#160;    user_table</div>
<div class="line"><a name="l02400"></a><span class="lineno"> 2400</span>&#160;  };</div>
<div class="line"><a name="l02401"></a><span class="lineno"> 2401</span>&#160; </div>
<div class="line"><a name="l02402"></a><span class="lineno"> 2402</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02403"></a><span class="lineno"> 2403</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02404"></a><span class="lineno"> 2404</span>&#160;<span class="comment">    Expert user function for reading damaged files.</span></div>
<div class="line"><a name="l02405"></a><span class="lineno"> 2405</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02406"></a><span class="lineno"> 2406</span>&#160;<span class="comment">    chunk - [out] current chunk.</span></div>
<div class="line"><a name="l02407"></a><span class="lineno"> 2407</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02408"></a><span class="lineno"> 2408</span>&#160;<span class="comment">    Level of the chunk or 0 if there is no current</span></div>
<div class="line"><a name="l02409"></a><span class="lineno"> 2409</span>&#160;<span class="comment">    chunk.</span></div>
<div class="line"><a name="l02410"></a><span class="lineno"> 2410</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02411"></a><span class="lineno"> 2411</span>&#160;  <span class="keywordtype">int</span> GetCurrentChunk(<a class="code" href="struct_o_n__3_d_m___c_h_u_n_k.html">ON_3DM_CHUNK</a>&amp; chunk) <span class="keyword">const</span>;</div>
<div class="line"><a name="l02412"></a><span class="lineno"> 2412</span>&#160;  <span class="keywordtype">int</span> GetCurrentChunk(<a class="code" href="struct_o_n__3_d_m___b_i_g___c_h_u_n_k.html">ON_3DM_BIG_CHUNK</a>&amp; big_chunk) <span class="keyword">const</span>;</div>
<div class="line"><a name="l02413"></a><span class="lineno"> 2413</span>&#160; </div>
<div class="line"><a name="l02414"></a><span class="lineno"> 2414</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02415"></a><span class="lineno"> 2415</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02416"></a><span class="lineno"> 2416</span>&#160;<span class="comment">    Expert user function for reading damaged files.  The search starts</span></div>
<div class="line"><a name="l02417"></a><span class="lineno"> 2417</span>&#160;<span class="comment">    at the beginning of the file.</span></div>
<div class="line"><a name="l02418"></a><span class="lineno"> 2418</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02419"></a><span class="lineno"> 2419</span>&#160;<span class="comment">    tcode_table - [in] typecode of the table</span></div>
<div class="line"><a name="l02420"></a><span class="lineno"> 2420</span>&#160;<span class="comment">    tcode_record - [in] typecode of the record</span></div>
<div class="line"><a name="l02421"></a><span class="lineno"> 2421</span>&#160;<span class="comment">    class_uuid - [in] id of the opennurbs class in the record</span></div>
<div class="line"><a name="l02422"></a><span class="lineno"> 2422</span>&#160;<span class="comment">    min_length_data - [in] minimum size of the opennurbs class data</span></div>
<div class="line"><a name="l02423"></a><span class="lineno"> 2423</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02424"></a><span class="lineno"> 2424</span>&#160;<span class="comment">    True if the table start is found.  In this case the current</span></div>
<div class="line"><a name="l02425"></a><span class="lineno"> 2425</span>&#160;<span class="comment">    position of the archive is at the start of the table and</span></div>
<div class="line"><a name="l02426"></a><span class="lineno"> 2426</span>&#160;<span class="comment">    the standared BeginRead3dm...Table() function can be used.</span></div>
<div class="line"><a name="l02427"></a><span class="lineno"> 2427</span>&#160;<span class="comment">    False if the table start is not found.</span></div>
<div class="line"><a name="l02428"></a><span class="lineno"> 2428</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02429"></a><span class="lineno"> 2429</span>&#160;  <span class="keywordtype">bool</span> FindTableInDamagedArchive(</div>
<div class="line"><a name="l02430"></a><span class="lineno"> 2430</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tcode_table,</div>
<div class="line"><a name="l02431"></a><span class="lineno"> 2431</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> tcode_record,</div>
<div class="line"><a name="l02432"></a><span class="lineno"> 2432</span>&#160;          <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> class_uuid,</div>
<div class="line"><a name="l02433"></a><span class="lineno"> 2433</span>&#160;          <span class="keywordtype">int</span> min_length_data</div>
<div class="line"><a name="l02434"></a><span class="lineno"> 2434</span>&#160;          );</div>
<div class="line"><a name="l02435"></a><span class="lineno"> 2435</span>&#160; </div>
<div class="line"><a name="l02436"></a><span class="lineno"> 2436</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02437"></a><span class="lineno"> 2437</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02438"></a><span class="lineno"> 2438</span>&#160;<span class="comment">    Expert user function for studying contents of a file.</span></div>
<div class="line"><a name="l02439"></a><span class="lineno"> 2439</span>&#160;<span class="comment">    The primary use is as an aid to help dig through files</span></div>
<div class="line"><a name="l02440"></a><span class="lineno"> 2440</span>&#160;<span class="comment">    that have been damaged (bad disks, transmission errors, etc.)</span></div>
<div class="line"><a name="l02441"></a><span class="lineno"> 2441</span>&#160;<span class="comment">    If an error is found, a line that begins with the word</span></div>
<div class="line"><a name="l02442"></a><span class="lineno"> 2442</span>&#160;<span class="comment">    &quot;ERROR&quot; is printed.</span></div>
<div class="line"><a name="l02443"></a><span class="lineno"> 2443</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02444"></a><span class="lineno"> 2444</span>&#160;<span class="comment">    text_log - [in] place to print informtion</span></div>
<div class="line"><a name="l02445"></a><span class="lineno"> 2445</span>&#160;<span class="comment">    recursion_depth - [in] simply a counter</span></div>
<div class="line"><a name="l02446"></a><span class="lineno"> 2446</span>&#160;<span class="comment">        to aid in debugging.</span></div>
<div class="line"><a name="l02447"></a><span class="lineno"> 2447</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02448"></a><span class="lineno"> 2448</span>&#160;<span class="comment">    0 if something went wrong, otherwise the typecode</span></div>
<div class="line"><a name="l02449"></a><span class="lineno"> 2449</span>&#160;<span class="comment">    of the chunk that was just studied.</span></div>
<div class="line"><a name="l02450"></a><span class="lineno"> 2450</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02451"></a><span class="lineno"> 2451</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> </div>
<div class="line"><a name="l02452"></a><span class="lineno"> 2452</span>&#160;  Dump3dmChunk(</div>
<div class="line"><a name="l02453"></a><span class="lineno"> 2453</span>&#160;        <a class="code" href="class_o_n___text_log.html">ON_TextLog</a>&amp; text_log, </div>
<div class="line"><a name="l02454"></a><span class="lineno"> 2454</span>&#160;        <span class="keywordtype">int</span> recursion_depth = 0</div>
<div class="line"><a name="l02455"></a><span class="lineno"> 2455</span>&#160;        );</div>
<div class="line"><a name="l02456"></a><span class="lineno"> 2456</span>&#160; </div>
<div class="line"><a name="l02457"></a><span class="lineno"> 2457</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l02458"></a><span class="lineno"> 2458</span>&#160; </div>
<div class="line"><a name="l02459"></a><span class="lineno"> 2459</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02460"></a><span class="lineno"> 2460</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02461"></a><span class="lineno"> 2461</span>&#160;<span class="comment">    Works like the C runtrim fread().</span></div>
<div class="line"><a name="l02462"></a><span class="lineno"> 2462</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02463"></a><span class="lineno"> 2463</span>&#160;<span class="comment">    actual number of bytes read (like fread())</span></div>
<div class="line"><a name="l02464"></a><span class="lineno"> 2464</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02465"></a><span class="lineno"> 2465</span>&#160;  <span class="keyword">virtual</span></div>
<div class="line"><a name="l02466"></a><span class="lineno"> 2466</span>&#160;  <span class="keywordtype">size_t</span> Read( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* ) = 0; </div>
<div class="line"><a name="l02467"></a><span class="lineno"> 2467</span>&#160; </div>
<div class="line"><a name="l02468"></a><span class="lineno"> 2468</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02469"></a><span class="lineno"> 2469</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02470"></a><span class="lineno"> 2470</span>&#160;<span class="comment">    Works like the C runtrim fwrite().</span></div>
<div class="line"><a name="l02471"></a><span class="lineno"> 2471</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02472"></a><span class="lineno"> 2472</span>&#160;<span class="comment">    actual number of bytes written (like fwrite())</span></div>
<div class="line"><a name="l02473"></a><span class="lineno"> 2473</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02474"></a><span class="lineno"> 2474</span>&#160;  <span class="keyword">virtual</span></div>
<div class="line"><a name="l02475"></a><span class="lineno"> 2475</span>&#160;  <span class="keywordtype">size_t</span> Write( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* ) = 0;</div>
<div class="line"><a name="l02476"></a><span class="lineno"> 2476</span>&#160; </div>
<div class="line"><a name="l02477"></a><span class="lineno"> 2477</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02478"></a><span class="lineno"> 2478</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02479"></a><span class="lineno"> 2479</span>&#160;<span class="comment">    Force Write() to flush any buffered data to physical archive.</span></div>
<div class="line"><a name="l02480"></a><span class="lineno"> 2480</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02481"></a><span class="lineno"> 2481</span>&#160;<span class="comment">    True if successful or if there is nothing to flush.  False if</span></div>
<div class="line"><a name="l02482"></a><span class="lineno"> 2482</span>&#160;<span class="comment">    information could not be flushed.</span></div>
<div class="line"><a name="l02483"></a><span class="lineno"> 2483</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02484"></a><span class="lineno"> 2484</span>&#160;  <span class="keyword">virtual</span></div>
<div class="line"><a name="l02485"></a><span class="lineno"> 2485</span>&#160;  <span class="keywordtype">bool</span> Flush() = 0;</div>
<div class="line"><a name="l02486"></a><span class="lineno"> 2486</span>&#160; </div>
<div class="line"><a name="l02487"></a><span class="lineno"> 2487</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02488"></a><span class="lineno"> 2488</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02489"></a><span class="lineno"> 2489</span>&#160;<span class="comment">    When ON_BinaryArchive::ReadObject() encounters userdata and</span></div>
<div class="line"><a name="l02490"></a><span class="lineno"> 2490</span>&#160;<span class="comment">    the user data class id is not present,  LoadUserDataApplication</span></div>
<div class="line"><a name="l02491"></a><span class="lineno"> 2491</span>&#160;<span class="comment">    is called to load the application that created user data.</span></div>
<div class="line"><a name="l02492"></a><span class="lineno"> 2492</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02493"></a><span class="lineno"> 2493</span>&#160;<span class="comment">    0 - could not load the application</span></div>
<div class="line"><a name="l02494"></a><span class="lineno"> 2494</span>&#160;<span class="comment">    1 - successfully loaded the application</span></div>
<div class="line"><a name="l02495"></a><span class="lineno"> 2495</span>&#160;<span class="comment">    2 - the application was already loaded</span></div>
<div class="line"><a name="l02496"></a><span class="lineno"> 2496</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02497"></a><span class="lineno"> 2497</span>&#160;  <span class="keyword">virtual</span></div>
<div class="line"><a name="l02498"></a><span class="lineno"> 2498</span>&#160;  <span class="keywordtype">int</span> LoadUserDataApplication( </div>
<div class="line"><a name="l02499"></a><span class="lineno"> 2499</span>&#160;    <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> application_id </div>
<div class="line"><a name="l02500"></a><span class="lineno"> 2500</span>&#160;    );</div>
<div class="line"><a name="l02501"></a><span class="lineno"> 2501</span>&#160; </div>
<div class="line"><a name="l02502"></a><span class="lineno"> 2502</span>&#160;  <span class="keywordtype">bool</span> SetArchive3dmVersion(<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l02503"></a><span class="lineno"> 2503</span>&#160; </div>
<div class="line"><a name="l02504"></a><span class="lineno"> 2504</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02505"></a><span class="lineno"> 2505</span>&#160;  <span class="comment">// 16 bit integer IO</span></div>
<div class="line"><a name="l02506"></a><span class="lineno"> 2506</span>&#160;  <span class="keywordtype">bool</span> WriteInt8( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> ON__INT8* );</div>
<div class="line"><a name="l02507"></a><span class="lineno"> 2507</span>&#160;  <span class="keywordtype">bool</span> ReadInt8( <span class="keywordtype">size_t</span>, ON__INT8* );</div>
<div class="line"><a name="l02508"></a><span class="lineno"> 2508</span>&#160; </div>
<div class="line"><a name="l02509"></a><span class="lineno"> 2509</span>&#160;  <span class="comment">// 16 bit integer IO</span></div>
<div class="line"><a name="l02510"></a><span class="lineno"> 2510</span>&#160;  <span class="keywordtype">bool</span> WriteInt16( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> ON__INT16* );</div>
<div class="line"><a name="l02511"></a><span class="lineno"> 2511</span>&#160;  <span class="keywordtype">bool</span> ReadInt16( <span class="keywordtype">size_t</span>, ON__INT16* );</div>
<div class="line"><a name="l02512"></a><span class="lineno"> 2512</span>&#160; </div>
<div class="line"><a name="l02513"></a><span class="lineno"> 2513</span>&#160;  <span class="comment">// 32 bit integer IO</span></div>
<div class="line"><a name="l02514"></a><span class="lineno"> 2514</span>&#160;  <span class="keywordtype">bool</span> WriteInt32( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> ON__INT32* );</div>
<div class="line"><a name="l02515"></a><span class="lineno"> 2515</span>&#160;  <span class="keywordtype">bool</span> ReadInt32( <span class="keywordtype">size_t</span>, ON__INT32* );</div>
<div class="line"><a name="l02516"></a><span class="lineno"> 2516</span>&#160; </div>
<div class="line"><a name="l02517"></a><span class="lineno"> 2517</span>&#160;  <span class="comment">// 64 bit integer IO</span></div>
<div class="line"><a name="l02518"></a><span class="lineno"> 2518</span>&#160;  <span class="keywordtype">bool</span> WriteInt64( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> ON__INT64* );</div>
<div class="line"><a name="l02519"></a><span class="lineno"> 2519</span>&#160;  <span class="keywordtype">bool</span> ReadInt64(  <span class="keywordtype">size_t</span>, ON__INT64* );</div>
<div class="line"><a name="l02520"></a><span class="lineno"> 2520</span>&#160; </div>
<div class="line"><a name="l02521"></a><span class="lineno"> 2521</span>&#160;  <span class="keywordtype">bool</span> BeginWrite3dmTable( </div>
<div class="line"><a name="l02522"></a><span class="lineno"> 2522</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">// tcode</span></div>
<div class="line"><a name="l02523"></a><span class="lineno"> 2523</span>&#160;    );</div>
<div class="line"><a name="l02524"></a><span class="lineno"> 2524</span>&#160;  <span class="keywordtype">bool</span> EndWrite3dmTable( </div>
<div class="line"><a name="l02525"></a><span class="lineno"> 2525</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">// tcode</span></div>
<div class="line"><a name="l02526"></a><span class="lineno"> 2526</span>&#160;    );</div>
<div class="line"><a name="l02527"></a><span class="lineno"> 2527</span>&#160;  <span class="keywordtype">bool</span> BeginRead3dmTable( </div>
<div class="line"><a name="l02528"></a><span class="lineno"> 2528</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">// tcode</span></div>
<div class="line"><a name="l02529"></a><span class="lineno"> 2529</span>&#160;    );</div>
<div class="line"><a name="l02530"></a><span class="lineno"> 2530</span>&#160;  <span class="keywordtype">bool</span> EndRead3dmTable( </div>
<div class="line"><a name="l02531"></a><span class="lineno"> 2531</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <span class="comment">// tcode</span></div>
<div class="line"><a name="l02532"></a><span class="lineno"> 2532</span>&#160;    );</div>
<div class="line"><a name="l02533"></a><span class="lineno"> 2533</span>&#160;  </div>
<div class="line"><a name="l02534"></a><span class="lineno"> 2534</span>&#160;  <span class="keywordtype">bool</span> Read3dmV1Layer( <a class="code" href="class_o_n___layer.html">ON_Layer</a>*&amp; );</div>
<div class="line"><a name="l02535"></a><span class="lineno"> 2535</span>&#160;  <span class="keywordtype">int</span>  Read3dmV1Light(  <span class="comment">// returns 0 at end of light table</span></div>
<div class="line"><a name="l02536"></a><span class="lineno"> 2536</span>&#160;                      <span class="comment">//         1 light successfully read</span></div>
<div class="line"><a name="l02537"></a><span class="lineno"> 2537</span>&#160;                      <span class="comment">//        -1 if file is corrupt</span></div>
<div class="line"><a name="l02538"></a><span class="lineno"> 2538</span>&#160;            <a class="code" href="class_o_n___light.html">ON_Light</a>**, <span class="comment">// light returned here</span></div>
<div class="line"><a name="l02539"></a><span class="lineno"> 2539</span>&#160;            <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>* <span class="comment">// optional - if NOT NULL, object attributes are</span></div>
<div class="line"><a name="l02540"></a><span class="lineno"> 2540</span>&#160;                                    <span class="comment">//            returned here</span></div>
<div class="line"><a name="l02541"></a><span class="lineno"> 2541</span>&#160;            );</div>
<div class="line"><a name="l02542"></a><span class="lineno"> 2542</span>&#160;  <span class="keywordtype">int</span> Read3dmV1Material( <a class="code" href="class_o_n___material.html">ON_Material</a>** );</div>
<div class="line"><a name="l02543"></a><span class="lineno"> 2543</span>&#160;  <span class="keywordtype">int</span>  Read3dmV1Object( <span class="comment">// returns 0 at end of object table</span></div>
<div class="line"><a name="l02544"></a><span class="lineno"> 2544</span>&#160;                      <span class="comment">//         1 if object is read</span></div>
<div class="line"><a name="l02545"></a><span class="lineno"> 2545</span>&#160;                      <span class="comment">//         2 if object is skipped because it does not match filter</span></div>
<div class="line"><a name="l02546"></a><span class="lineno"> 2546</span>&#160;                      <span class="comment">//        -1 if file is corrupt</span></div>
<div class="line"><a name="l02547"></a><span class="lineno"> 2547</span>&#160;          <a class="code" href="class_o_n___object.html">ON_Object</a>**, <span class="comment">// object returned here (NULL if skipped)</span></div>
<div class="line"><a name="l02548"></a><span class="lineno"> 2548</span>&#160;          <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*, <span class="comment">// optional - if NOT NULL, object attributes are</span></div>
<div class="line"><a name="l02549"></a><span class="lineno"> 2549</span>&#160;                                   <span class="comment">//            returned here</span></div>
<div class="line"><a name="l02550"></a><span class="lineno"> 2550</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> = 0 <span class="comment">// optional filter made by setting ON::object_type bits</span></div>
<div class="line"><a name="l02551"></a><span class="lineno"> 2551</span>&#160;          );  <span class="comment">// returns NULL at end of object table</span></div>
<div class="line"><a name="l02552"></a><span class="lineno"> 2552</span>&#160; </div>
<div class="line"><a name="l02553"></a><span class="lineno"> 2553</span>&#160;  <span class="keywordtype">bool</span> Read3dmV1AttributesOrMaterial( </div>
<div class="line"><a name="l02554"></a><span class="lineno"> 2554</span>&#160;            <a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*,    <span class="comment">// attributes,</span></div>
<div class="line"><a name="l02555"></a><span class="lineno"> 2555</span>&#160;            <a class="code" href="class_o_n___material.html">ON_Material</a>*,      <span class="comment">// material,</span></div>
<div class="line"><a name="l02556"></a><span class="lineno"> 2556</span>&#160;            ON_BOOL32&amp;,             <span class="comment">// bHaveMat</span></div>
<div class="line"><a name="l02557"></a><span class="lineno"> 2557</span>&#160;            <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>,      <span class="comment">// end_mark_tcode </span></div>
<div class="line"><a name="l02558"></a><span class="lineno"> 2558</span>&#160;            <span class="keyword">class</span> ON__3dmV1_XDATA* = 0 <span class="comment">// v1 &quot;xdata&quot;</span></div>
<div class="line"><a name="l02559"></a><span class="lineno"> 2559</span>&#160;            );</div>
<div class="line"><a name="l02560"></a><span class="lineno"> 2560</span>&#160;  <span class="keywordtype">bool</span> Read3dmV1String( <a class="code" href="class_o_n___string.html">ON_String</a>&amp; );</div>
<div class="line"><a name="l02561"></a><span class="lineno"> 2561</span>&#160;  <span class="keywordtype">int</span>  Read3dmV1LayerIndex( <span class="keyword">const</span> <span class="keywordtype">char</span>* ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l02562"></a><span class="lineno"> 2562</span>&#160; </div>
<div class="line"><a name="l02563"></a><span class="lineno"> 2563</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02564"></a><span class="lineno"> 2564</span>&#160;  <span class="comment">// helpers for reading V1 objects</span></div>
<div class="line"><a name="l02565"></a><span class="lineno"> 2565</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_RH_POINT(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02566"></a><span class="lineno"> 2566</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_MESH_OBJECT(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02567"></a><span class="lineno"> 2567</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_LEGACY_CRV(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02568"></a><span class="lineno"> 2568</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_LEGACY_FAC(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02569"></a><span class="lineno"> 2569</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_LEGACY_SHL(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02570"></a><span class="lineno"> 2570</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_RHINOIO_OBJECT_NURBS_CURVE(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02571"></a><span class="lineno"> 2571</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_RHINOIO_OBJECT_NURBS_SURFACE(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02572"></a><span class="lineno"> 2572</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_RHINOIO_OBJECT_BREP(<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02573"></a><span class="lineno"> 2573</span>&#160;  <span class="keywordtype">bool</span> ReadV1_TCODE_ANNOTATION(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>,<a class="code" href="class_o_n___object.html">ON_Object</a>**,<a class="code" href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a>*);</div>
<div class="line"><a name="l02574"></a><span class="lineno"> 2574</span>&#160; </div>
<div class="line"><a name="l02575"></a><span class="lineno"> 2575</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02576"></a><span class="lineno"> 2576</span>&#160;  ON::archive_mode Mode() <span class="keyword">const</span>; <span class="comment">// current read/write mode</span></div>
<div class="line"><a name="l02577"></a><span class="lineno"> 2577</span>&#160;  <span class="keywordtype">void</span> UpdateCRC( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02578"></a><span class="lineno"> 2578</span>&#160;  <span class="keywordtype">int</span> ReadObjectHelper(<a class="code" href="class_o_n___object.html">ON_Object</a>**);</div>
<div class="line"><a name="l02579"></a><span class="lineno"> 2579</span>&#160; </div>
<div class="line"><a name="l02580"></a><span class="lineno"> 2580</span>&#160;  <span class="keywordtype">int</span> m_3dm_version;</div>
<div class="line"><a name="l02581"></a><span class="lineno"> 2581</span>&#160;  <span class="keywordtype">int</span> m_3dm_v1_layer_index;</div>
<div class="line"><a name="l02582"></a><span class="lineno"> 2582</span>&#160;  <span class="keywordtype">int</span> m_3dm_v1_material_index;</div>
<div class="line"><a name="l02583"></a><span class="lineno"> 2583</span>&#160; </div>
<div class="line"><a name="l02584"></a><span class="lineno"> 2584</span>&#160;  <span class="comment">// The bits in m_error_message_mask are used to mask errors</span></div>
<div class="line"><a name="l02585"></a><span class="lineno"> 2585</span>&#160;  <span class="comment">// when we know we are doing something that may generate an</span></div>
<div class="line"><a name="l02586"></a><span class="lineno"> 2586</span>&#160;  <span class="comment">// error.</span></div>
<div class="line"><a name="l02587"></a><span class="lineno"> 2587</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02588"></a><span class="lineno"> 2588</span>&#160;  <span class="comment">// bit 0x00000001</span></div>
<div class="line"><a name="l02589"></a><span class="lineno"> 2589</span>&#160;  <span class="comment">//   V1 files do not have a table structure and are read using</span></div>
<div class="line"><a name="l02590"></a><span class="lineno"> 2590</span>&#160;  <span class="comment">//   multiple passes and there are valid situations where a </span></div>
<div class="line"><a name="l02591"></a><span class="lineno"> 2591</span>&#160;  <span class="comment">//   4 byte read is attempted at the end of a file.</span></div>
<div class="line"><a name="l02592"></a><span class="lineno"> 2592</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02593"></a><span class="lineno"> 2593</span>&#160;  <span class="comment">// bit 0x00000002</span></div>
<div class="line"><a name="l02594"></a><span class="lineno"> 2594</span>&#160;  <span class="comment">//   Some v1 files do not have an end mark.  When reading</span></div>
<div class="line"><a name="l02595"></a><span class="lineno"> 2595</span>&#160;  <span class="comment">//   these v1 files bit 0x02 is set.</span></div>
<div class="line"><a name="l02596"></a><span class="lineno"> 2596</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02597"></a><span class="lineno"> 2597</span>&#160;  <span class="comment">// bit 0x00000004</span></div>
<div class="line"><a name="l02598"></a><span class="lineno"> 2598</span>&#160;  <span class="comment">//   Requested read may go beyond end of file.</span></div>
<div class="line"><a name="l02599"></a><span class="lineno"> 2599</span>&#160;  <span class="comment">//   One situation where this happens is when a table is not at the </span></div>
<div class="line"><a name="l02600"></a><span class="lineno"> 2600</span>&#160;  <span class="comment">//   expected location in a file, </span></div>
<div class="line"><a name="l02601"></a><span class="lineno"> 2601</span>&#160; </div>
<div class="line"><a name="l02602"></a><span class="lineno"> 2602</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_error_message_mask;</div>
<div class="line"><a name="l02603"></a><span class="lineno"> 2603</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l02604"></a><span class="lineno"> 2604</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ErrorMessageMask() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02605"></a><span class="lineno"> 2605</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02606"></a><span class="lineno"> 2606</span>&#160;<span class="comment">  Paramters:</span></div>
<div class="line"><a name="l02607"></a><span class="lineno"> 2607</span>&#160;<span class="comment">    sizeof_request - [in] </span></div>
<div class="line"><a name="l02608"></a><span class="lineno"> 2608</span>&#160;<span class="comment">      value of count parameter passed to virtual Read() function.</span></div>
<div class="line"><a name="l02609"></a><span class="lineno"> 2609</span>&#160;<span class="comment">    sizeof_read - [in]</span></div>
<div class="line"><a name="l02610"></a><span class="lineno"> 2610</span>&#160;<span class="comment">      number of bytes actually read by the virtual Read() function.</span></div>
<div class="line"><a name="l02611"></a><span class="lineno"> 2611</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02612"></a><span class="lineno"> 2612</span>&#160;<span class="comment">    True if a call to Read() is permitted to ask for more bytes</span></div>
<div class="line"><a name="l02613"></a><span class="lineno"> 2613</span>&#160;<span class="comment">    than are left in the file.  This value varies as the file</span></div>
<div class="line"><a name="l02614"></a><span class="lineno"> 2614</span>&#160;<span class="comment">    is read and must be checked at each failure.</span></div>
<div class="line"><a name="l02615"></a><span class="lineno"> 2615</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02616"></a><span class="lineno"> 2616</span>&#160;  <span class="keywordtype">bool</span> MaskReadError( ON__UINT64 sizeof_request, ON__UINT64 sizeof_read ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l02617"></a><span class="lineno"> 2617</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02618"></a><span class="lineno"> 2618</span>&#160; </div>
<div class="line"><a name="l02619"></a><span class="lineno"> 2619</span>&#160; </div>
<div class="line"><a name="l02620"></a><span class="lineno"> 2620</span>&#160;  <span class="comment">// When a 3DM archive is read, m_3dm_opennurbs_version records the version of</span></div>
<div class="line"><a name="l02621"></a><span class="lineno"> 2621</span>&#160;  <span class="comment">// OpenNURBS used to create the archive.  Otherwise, m_3dm_opennurbs_version</span></div>
<div class="line"><a name="l02622"></a><span class="lineno"> 2622</span>&#160;  <span class="comment">// is zero.</span></div>
<div class="line"><a name="l02623"></a><span class="lineno"> 2623</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02624"></a><span class="lineno"> 2624</span>&#160;  <span class="comment">// Read3dmProperties() sets this to the version of OpenNURBS that was</span></div>
<div class="line"><a name="l02625"></a><span class="lineno"> 2625</span>&#160;  <span class="comment">// used to write file file.  If the file was created using a version</span></div>
<div class="line"><a name="l02626"></a><span class="lineno"> 2626</span>&#160;  <span class="comment">// of OpenNURBS before 200012210, this number will be zero.</span></div>
<div class="line"><a name="l02627"></a><span class="lineno"> 2627</span>&#160;  <span class="comment">//</span></div>
<div class="line"><a name="l02628"></a><span class="lineno"> 2628</span>&#160;  <span class="comment">// Write3dmProperties() stores the value returned by ON::Version() in</span></div>
<div class="line"><a name="l02629"></a><span class="lineno"> 2629</span>&#160;  <span class="comment">// the archive&#39;s properties table.</span></div>
<div class="line"><a name="l02630"></a><span class="lineno"> 2630</span>&#160;  <span class="keyword">friend</span> <span class="keywordtype">void</span> ON_SetBinaryArchiveOpenNURBSVersion(<a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp;,<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l02631"></a><span class="lineno"> 2631</span>&#160;  <span class="keywordtype">int</span> m_3dm_opennurbs_version;</div>
<div class="line"><a name="l02632"></a><span class="lineno"> 2632</span>&#160; </div>
<div class="line"><a name="l02633"></a><span class="lineno"> 2633</span>&#160;  <span class="comment">// When a 3dm archive is saved from an MFC application that supports</span></div>
<div class="line"><a name="l02634"></a><span class="lineno"> 2634</span>&#160;  <span class="comment">// Windows linking/embedding, the first 5kb to 1mb of the file contains</span></div>
<div class="line"><a name="l02635"></a><span class="lineno"> 2635</span>&#160;  <span class="comment">// information that is put there by MFC.  m_3dm_start_section_offset</span></div>
<div class="line"><a name="l02636"></a><span class="lineno"> 2636</span>&#160;  <span class="comment">// records the offset into the file where the 3dm archive actually begins.</span></div>
<div class="line"><a name="l02637"></a><span class="lineno"> 2637</span>&#160;  <span class="keywordtype">size_t</span> m_3dm_start_section_offset;</div>
<div class="line"><a name="l02638"></a><span class="lineno"> 2638</span>&#160; </div>
<div class="line"><a name="l02639"></a><span class="lineno"> 2639</span>&#160;  table_type m_active_table;</div>
<div class="line"><a name="l02640"></a><span class="lineno"> 2640</span>&#160; </div>
<div class="line"><a name="l02641"></a><span class="lineno"> 2641</span>&#160;  table_type TableTypeFromTypecode( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ); <span class="comment">// table type from tcode</span></div>
<div class="line"><a name="l02642"></a><span class="lineno"> 2642</span>&#160; </div>
<div class="line"><a name="l02643"></a><span class="lineno"> 2643</span>&#160;  <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt;ON_3DM_BIG_CHUNK&gt;</a> m_chunk;</div>
<div class="line"><a name="l02644"></a><span class="lineno"> 2644</span>&#160; </div>
<div class="line"><a name="l02645"></a><span class="lineno"> 2645</span>&#160;  <span class="comment">// stack of chunks</span></div>
<div class="line"><a name="l02646"></a><span class="lineno"> 2646</span>&#160;  <span class="keywordtype">bool</span> PushBigChunk( ON__UINT32 typecode, ON__INT64 value );</div>
<div class="line"><a name="l02647"></a><span class="lineno"> 2647</span>&#160; </div>
<div class="line"><a name="l02648"></a><span class="lineno"> 2648</span>&#160;  <span class="keywordtype">bool</span> WriteChunkTypecode( ON__UINT32 );</div>
<div class="line"><a name="l02649"></a><span class="lineno"> 2649</span>&#160;  <span class="keywordtype">bool</span> ReadChunkTypecode( ON__UINT32* );</div>
<div class="line"><a name="l02650"></a><span class="lineno"> 2650</span>&#160;  <span class="keywordtype">bool</span> WriteChunkValue( ON__UINT32 typecode, ON__INT64 );</div>
<div class="line"><a name="l02651"></a><span class="lineno"> 2651</span>&#160;  <span class="keywordtype">bool</span> WriteChunkLength( ON__UINT64 );</div>
<div class="line"><a name="l02652"></a><span class="lineno"> 2652</span>&#160;  <span class="keywordtype">bool</span> ReadChunkValue( ON__UINT32 typecode, ON__INT64* value64 );</div>
<div class="line"><a name="l02653"></a><span class="lineno"> 2653</span>&#160;  <span class="keywordtype">bool</span> FindMisplacedTable( </div>
<div class="line"><a name="l02654"></a><span class="lineno"> 2654</span>&#160;        ON__UINT64 filelength,</div>
<div class="line"><a name="l02655"></a><span class="lineno"> 2655</span>&#160;        <span class="keyword">const</span> ON__UINT32 table_tocde,</div>
<div class="line"><a name="l02656"></a><span class="lineno"> 2656</span>&#160;        <span class="keyword">const</span> ON__UINT32 table_record_record,</div>
<div class="line"><a name="l02657"></a><span class="lineno"> 2657</span>&#160;        <span class="keyword">const</span> <a class="code" href="class_o_n___u_u_i_d.html">ON_UUID</a> class_uuid,</div>
<div class="line"><a name="l02658"></a><span class="lineno"> 2658</span>&#160;        <span class="keyword">const</span> ON__UINT64 min_length_data</div>
<div class="line"><a name="l02659"></a><span class="lineno"> 2659</span>&#160;        );</div>
<div class="line"><a name="l02660"></a><span class="lineno"> 2660</span>&#160; </div>
<div class="line"><a name="l02661"></a><span class="lineno"> 2661</span>&#160;  <span class="keywordtype">bool</span> ReadObjectUserDataAnonymousChunk(</div>
<div class="line"><a name="l02662"></a><span class="lineno"> 2662</span>&#160;          <span class="keyword">const</span> ON__UINT64 length_TCODE_ANONYMOUS_CHUNK,</div>
<div class="line"><a name="l02663"></a><span class="lineno"> 2663</span>&#160;          <span class="keyword">const</span> <span class="keywordtype">int</span> archive_3dm_version,</div>
<div class="line"><a name="l02664"></a><span class="lineno"> 2664</span>&#160;          <span class="keyword">const</span> <span class="keywordtype">int</span> archive_opennurbs_version,</div>
<div class="line"><a name="l02665"></a><span class="lineno"> 2665</span>&#160;          <span class="keyword">class</span> <a class="code" href="class_o_n___user_data.html">ON_UserData</a>* ud );</div>
<div class="line"><a name="l02666"></a><span class="lineno"> 2666</span>&#160; </div>
<div class="line"><a name="l02667"></a><span class="lineno"> 2667</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02668"></a><span class="lineno"> 2668</span>&#160;  <span class="keywordtype">size_t</span> SizeofChunkLength() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02669"></a><span class="lineno"> 2669</span>&#160; </div>
<div class="line"><a name="l02670"></a><span class="lineno"> 2670</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02671"></a><span class="lineno"> 2671</span>&#160;  <span class="keywordtype">bool</span> WriteEOFSizeOfFile( ON__UINT64 );</div>
<div class="line"><a name="l02672"></a><span class="lineno"> 2672</span>&#160;  <span class="keywordtype">bool</span> ReadEOFSizeOfFile( ON__UINT64* );</div>
<div class="line"><a name="l02673"></a><span class="lineno"> 2673</span>&#160; </div>
<div class="line"><a name="l02674"></a><span class="lineno"> 2674</span>&#160;  <span class="keywordtype">bool</span> m_bDoChunkCRC; <span class="comment">// true if active chunk crc status should be checked</span></div>
<div class="line"><a name="l02675"></a><span class="lineno"> 2675</span>&#160;                      <span class="comment">// and updated.</span></div>
<div class="line"><a name="l02676"></a><span class="lineno"> 2676</span>&#160;  <span class="keywordtype">int</span> m_bad_CRC_count; <span class="comment">// number of chunks that have a bad crc</span></div>
<div class="line"><a name="l02677"></a><span class="lineno"> 2677</span>&#160; </div>
<div class="line"><a name="l02678"></a><span class="lineno"> 2678</span>&#160; </div>
<div class="line"><a name="l02679"></a><span class="lineno"> 2679</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02680"></a><span class="lineno"> 2680</span>&#160;  <span class="comment">// compressed buffer I/O uses zlib 1.1.3 inflate()/deflate()</span></div>
<div class="line"><a name="l02681"></a><span class="lineno"> 2681</span>&#160;  <span class="keyword">struct</span></div>
<div class="line"><a name="l02682"></a><span class="lineno"> 2682</span>&#160;  {</div>
<div class="line"><a name="l02683"></a><span class="lineno"> 2683</span>&#160;    ON::archive_mode mode; <span class="comment">// ON::read = read and inflate,  ON::write = deflate and write</span></div>
<div class="line"><a name="l02684"></a><span class="lineno"> 2684</span>&#160;    <span class="keyword">enum</span></div>
<div class="line"><a name="l02685"></a><span class="lineno"> 2685</span>&#160;    {</div>
<div class="line"><a name="l02686"></a><span class="lineno"> 2686</span>&#160;      sizeof_x_buffer = 16384</div>
<div class="line"><a name="l02687"></a><span class="lineno"> 2687</span>&#160;    };</div>
<div class="line"><a name="l02688"></a><span class="lineno"> 2688</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>    buffer[sizeof_x_buffer];</div>
<div class="line"><a name="l02689"></a><span class="lineno"> 2689</span>&#160;    <a class="code" href="structz__stream__s.html">z_stream</a>         strm;</div>
<div class="line"><a name="l02690"></a><span class="lineno"> 2690</span>&#160;  } m_zlib;</div>
<div class="line"><a name="l02691"></a><span class="lineno"> 2691</span>&#160; </div>
<div class="line"><a name="l02692"></a><span class="lineno"> 2692</span>&#160;  <span class="comment">// returns number of bytes written</span></div>
<div class="line"><a name="l02693"></a><span class="lineno"> 2693</span>&#160;  <span class="keywordtype">size_t</span> WriteDeflate(</div>
<div class="line"><a name="l02694"></a><span class="lineno"> 2694</span>&#160;        <span class="keywordtype">size_t</span>,         <span class="comment">// sizeof uncompressed input data</span></div>
<div class="line"><a name="l02695"></a><span class="lineno"> 2695</span>&#160;        <span class="keyword">const</span> <span class="keywordtype">void</span>*  <span class="comment">// uncompressed input data</span></div>
<div class="line"><a name="l02696"></a><span class="lineno"> 2696</span>&#160;        );</div>
<div class="line"><a name="l02697"></a><span class="lineno"> 2697</span>&#160;  <span class="keywordtype">bool</span> ReadInflate(</div>
<div class="line"><a name="l02698"></a><span class="lineno"> 2698</span>&#160;        <span class="keywordtype">size_t</span>,  <span class="comment">// sizeof uncompressed input data</span></div>
<div class="line"><a name="l02699"></a><span class="lineno"> 2699</span>&#160;        <span class="keywordtype">void</span>* <span class="comment">// buffer to hold uncompressed data</span></div>
<div class="line"><a name="l02700"></a><span class="lineno"> 2700</span>&#160;        );</div>
<div class="line"><a name="l02701"></a><span class="lineno"> 2701</span>&#160;  <span class="keywordtype">bool</span> CompressionInit();</div>
<div class="line"><a name="l02702"></a><span class="lineno"> 2702</span>&#160;  <span class="keywordtype">void</span> CompressionEnd();</div>
<div class="line"><a name="l02703"></a><span class="lineno"> 2703</span>&#160; </div>
<div class="line"><a name="l02704"></a><span class="lineno"> 2704</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02705"></a><span class="lineno"> 2705</span>&#160;  <span class="comment">// endian-ness of the cpu reading this file.</span></div>
<div class="line"><a name="l02706"></a><span class="lineno"> 2706</span>&#160;  <span class="comment">// 3dm files are alwasy saved with little endian byte order.</span></div>
<div class="line"><a name="l02707"></a><span class="lineno"> 2707</span>&#160;  ON::endian m_endian;</div>
<div class="line"><a name="l02708"></a><span class="lineno"> 2708</span>&#160; </div>
<div class="line"><a name="l02709"></a><span class="lineno"> 2709</span>&#160;  ON::archive_mode m_mode;</div>
<div class="line"><a name="l02710"></a><span class="lineno"> 2710</span>&#160; </div>
<div class="line"><a name="l02711"></a><span class="lineno"> 2711</span>&#160;  <span class="comment">// 3dm write options</span></div>
<div class="line"><a name="l02712"></a><span class="lineno"> 2712</span>&#160;  <span class="keywordtype">bool</span> m_bSaveUserData; <span class="comment">// true to save user data (increases file size)</span></div>
<div class="line"><a name="l02713"></a><span class="lineno"> 2713</span>&#160;  <span class="keywordtype">bool</span> m_bSavePreviewImage;    <span class="comment">// true to save 200x200 preview bitmap (increases file size)</span></div>
<div class="line"><a name="l02714"></a><span class="lineno"> 2714</span>&#160;  <span class="keywordtype">bool</span> m_bEmbedTextureBitmaps; <span class="comment">// true to embed texture, bump, trace, and wallpaper bitmaps (increases file size)</span></div>
<div class="line"><a name="l02715"></a><span class="lineno"> 2715</span>&#160;  <span class="keywordtype">bool</span> m_bSaveRenderMeshes;    <span class="comment">// true to save meshes used to render B-rep objects (increases file size)</span></div>
<div class="line"><a name="l02716"></a><span class="lineno"> 2716</span>&#160;  <span class="keywordtype">bool</span> m_bSaveAnalysisMeshes;  <span class="comment">// true to save meshes used in surface analysis (increases file size)</span></div>
<div class="line"><a name="l02717"></a><span class="lineno"> 2717</span>&#160; </div>
<div class="line"><a name="l02718"></a><span class="lineno"> 2718</span>&#160;  <span class="comment">// ids of plug-ins that support saving older (V3) versions</span></div>
<div class="line"><a name="l02719"></a><span class="lineno"> 2719</span>&#160;  <span class="comment">// of user data.  This information is filled in from the</span></div>
<div class="line"><a name="l02720"></a><span class="lineno"> 2720</span>&#160;  <span class="comment">// list of plug-ins passed in whenteh settings are saved.</span></div>
<div class="line"><a name="l02721"></a><span class="lineno"> 2721</span>&#160;  <a class="code" href="class_o_n___simple_array.html">ON_SimpleArray&lt; ON_UUID &gt;</a> m_V3_plugin_id_list;</div>
<div class="line"><a name="l02722"></a><span class="lineno"> 2722</span>&#160; </div>
<div class="line"><a name="l02723"></a><span class="lineno"> 2723</span>&#160;  <span class="keyword">struct </span>ON__3dmV1LayerIndex* m_V1_layer_list;</div>
<div class="line"><a name="l02724"></a><span class="lineno"> 2724</span>&#160; </div>
<div class="line"><a name="l02725"></a><span class="lineno"> 2725</span>&#160;  <span class="comment">// prohibit default construction, copy construction, and operator=</span></div>
<div class="line"><a name="l02726"></a><span class="lineno"> 2726</span>&#160;  <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>();</div>
<div class="line"><a name="l02727"></a><span class="lineno"> 2727</span>&#160;  <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02728"></a><span class="lineno"> 2728</span>&#160;  <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; operator=( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02729"></a><span class="lineno"> 2729</span>&#160; </div>
<div class="line"><a name="l02730"></a><span class="lineno"> 2730</span>&#160;};</div>
<div class="line"><a name="l02731"></a><span class="lineno"> 2731</span>&#160; </div>
<div class="line"><a name="l02732"></a><span class="lineno"><a class="line" href="class_o_n__3dm_goo.html"> 2732</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a></div>
<div class="line"><a name="l02733"></a><span class="lineno"> 2733</span>&#160;{</div>
<div class="line"><a name="l02734"></a><span class="lineno"> 2734</span>&#160;  <span class="comment">// used to store goo</span></div>
<div class="line"><a name="l02735"></a><span class="lineno"> 2735</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02736"></a><span class="lineno"> 2736</span>&#160;  <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>();</div>
<div class="line"><a name="l02737"></a><span class="lineno"> 2737</span>&#160;  ~<a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>();</div>
<div class="line"><a name="l02738"></a><span class="lineno"> 2738</span>&#160;  <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>( <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; );</div>
<div class="line"><a name="l02739"></a><span class="lineno"> 2739</span>&#160;  <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; operator=( <span class="keyword">const</span> <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>&amp; );</div>
<div class="line"><a name="l02740"></a><span class="lineno"> 2740</span>&#160; </div>
<div class="line"><a name="l02741"></a><span class="lineno"> 2741</span>&#160;  <span class="keywordtype">void</span> Dump(<a class="code" href="class_o_n___text_log.html">ON_TextLog</a>&amp;) <span class="keyword">const</span>;</div>
<div class="line"><a name="l02742"></a><span class="lineno"> 2742</span>&#160; </div>
<div class="line"><a name="l02743"></a><span class="lineno"> 2743</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> m_typecode;</div>
<div class="line"><a name="l02744"></a><span class="lineno"> 2744</span>&#160;  <span class="keywordtype">int</span> m_value;</div>
<div class="line"><a name="l02745"></a><span class="lineno"> 2745</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* m_goo;</div>
<div class="line"><a name="l02746"></a><span class="lineno"> 2746</span>&#160;  <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>* m_next_goo;</div>
<div class="line"><a name="l02747"></a><span class="lineno"> 2747</span>&#160;  <a class="code" href="class_o_n__3dm_goo.html">ON_3dmGoo</a>* m_prev_goo;</div>
<div class="line"><a name="l02748"></a><span class="lineno"> 2748</span>&#160;};</div>
<div class="line"><a name="l02749"></a><span class="lineno"> 2749</span>&#160; </div>
<div class="line"><a name="l02750"></a><span class="lineno"> 2750</span>&#160; </div>
<div class="line"><a name="l02751"></a><span class="lineno"><a class="line" href="class_o_n___binary_file.html"> 2751</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a> : <span class="keyword">public</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div>
<div class="line"><a name="l02752"></a><span class="lineno"> 2752</span>&#160;{</div>
<div class="line"><a name="l02753"></a><span class="lineno"> 2753</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02754"></a><span class="lineno"> 2754</span>&#160;  <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>( ON::archive_mode );</div>
<div class="line"><a name="l02755"></a><span class="lineno"> 2755</span>&#160; </div>
<div class="line"><a name="l02756"></a><span class="lineno"> 2756</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02757"></a><span class="lineno"> 2757</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02758"></a><span class="lineno"> 2758</span>&#160;<span class="comment">    Create an ON_BinaryArchive that reads/writes from an ordinary file.</span></div>
<div class="line"><a name="l02759"></a><span class="lineno"> 2759</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02760"></a><span class="lineno"> 2760</span>&#160;<span class="comment">    mode - [in]</span></div>
<div class="line"><a name="l02761"></a><span class="lineno"> 2761</span>&#160;<span class="comment">    fp - [in]</span></div>
<div class="line"><a name="l02762"></a><span class="lineno"> 2762</span>&#160;<span class="comment">      If a file is being read, fp is the pointer returned </span></div>
<div class="line"><a name="l02763"></a><span class="lineno"> 2763</span>&#160;<span class="comment">      from ON_FileStream::Open(...,&quot;rb&quot;).</span></div>
<div class="line"><a name="l02764"></a><span class="lineno"> 2764</span>&#160;<span class="comment">      If a file is being written, fp is the pointer returned </span></div>
<div class="line"><a name="l02765"></a><span class="lineno"> 2765</span>&#160;<span class="comment">      from ON_FileStream::Open(...,&quot;wb&quot;).</span></div>
<div class="line"><a name="l02766"></a><span class="lineno"> 2766</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02767"></a><span class="lineno"> 2767</span>&#160;  <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>( ON::archive_mode, FILE* fp );</div>
<div class="line"><a name="l02768"></a><span class="lineno"> 2768</span>&#160; </div>
<div class="line"><a name="l02769"></a><span class="lineno"> 2769</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>();</div>
<div class="line"><a name="l02770"></a><span class="lineno"> 2770</span>&#160; </div>
<div class="line"><a name="l02771"></a><span class="lineno"> 2771</span>&#160;  <span class="comment">// ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l02772"></a><span class="lineno"> 2772</span>&#160;  <span class="keywordtype">size_t</span> CurrentPosition() <span class="keyword">const</span>; </div>
<div class="line"><a name="l02773"></a><span class="lineno"> 2773</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition(<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l02774"></a><span class="lineno"> 2774</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart(<span class="keywordtype">size_t</span>);</div>
<div class="line"><a name="l02775"></a><span class="lineno"> 2775</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02776"></a><span class="lineno"> 2776</span>&#160; </div>
<div class="line"><a name="l02777"></a><span class="lineno"> 2777</span>&#160;  <span class="comment">// fseek from end (since the file has an end)</span></div>
<div class="line"><a name="l02778"></a><span class="lineno"> 2778</span>&#160;  <span class="keywordtype">bool</span> SeekFromEnd( <span class="keywordtype">int</span> ); </div>
<div class="line"><a name="l02779"></a><span class="lineno"> 2779</span>&#160; </div>
<div class="line"><a name="l02781"></a><span class="lineno"> 2781</span>&#160;  <span class="comment">// To use custom memory buffering instead of relying</span></div>
<div class="line"><a name="l02782"></a><span class="lineno"> 2782</span>&#160;  <span class="comment">// on fread()/fwrite()&#39;s build in buffering, call</span></div>
<div class="line"><a name="l02783"></a><span class="lineno"> 2783</span>&#160;  <span class="comment">// EnableMemoryBuffer() with the buffer size immediately</span></div>
<div class="line"><a name="l02784"></a><span class="lineno"> 2784</span>&#160;  <span class="comment">// after constructing the ON_BinaryFile.  There appear</span></div>
<div class="line"><a name="l02785"></a><span class="lineno"> 2785</span>&#160;  <span class="comment">// to be enough bugs in existing Windows NT/2000 NETWORK</span></div>
<div class="line"><a name="l02786"></a><span class="lineno"> 2786</span>&#160;  <span class="comment">// I/O that using this hack will speed up I/O by factors</span></div>
<div class="line"><a name="l02787"></a><span class="lineno"> 2787</span>&#160;  <span class="comment">// of 10 to 100.</span></div>
<div class="line"><a name="l02788"></a><span class="lineno"> 2788</span>&#160;  <span class="keywordtype">void</span> EnableMemoryBuffer(</div>
<div class="line"><a name="l02789"></a><span class="lineno"> 2789</span>&#160;         <span class="keywordtype">int</span>=16384 <span class="comment">// capacity of memory buffer</span></div>
<div class="line"><a name="l02790"></a><span class="lineno"> 2790</span>&#160;         );</div>
<div class="line"><a name="l02791"></a><span class="lineno"> 2791</span>&#160; </div>
<div class="line"><a name="l02792"></a><span class="lineno"> 2792</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l02793"></a><span class="lineno"> 2793</span>&#160;  <span class="keywordtype">size_t</span> Read( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02794"></a><span class="lineno"> 2794</span>&#160;  <span class="keywordtype">size_t</span> Write( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02795"></a><span class="lineno"> 2795</span>&#160;  <span class="keywordtype">bool</span> Flush();</div>
<div class="line"><a name="l02796"></a><span class="lineno"> 2796</span>&#160; </div>
<div class="line"><a name="l02797"></a><span class="lineno"> 2797</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02798"></a><span class="lineno"> 2798</span>&#160;  <span class="comment">// Implementation</span></div>
<div class="line"><a name="l02799"></a><span class="lineno"> 2799</span>&#160;  FILE* m_fp;</div>
<div class="line"><a name="l02800"></a><span class="lineno"> 2800</span>&#160; </div>
<div class="line"><a name="l02801"></a><span class="lineno"> 2801</span>&#160;  <span class="comment">// if m_memory_buffer_capacity is zero, then Write() uses</span></div>
<div class="line"><a name="l02802"></a><span class="lineno"> 2802</span>&#160;  <span class="comment">// fwrite() directly.  If m_memory_buffer_capacity is</span></div>
<div class="line"><a name="l02803"></a><span class="lineno"> 2803</span>&#160;  <span class="comment">// greater than zero, then Write() buffers its results</span></div>
<div class="line"><a name="l02804"></a><span class="lineno"> 2804</span>&#160;  <span class="comment">// into m_memory_buffer.  This is provided to work around</span></div>
<div class="line"><a name="l02805"></a><span class="lineno"> 2805</span>&#160;  <span class="comment">// bugs in some networks that result in extremely slow</span></div>
<div class="line"><a name="l02806"></a><span class="lineno"> 2806</span>&#160;  <span class="comment">// performance when seeking is used.</span></div>
<div class="line"><a name="l02807"></a><span class="lineno"> 2807</span>&#160;  <span class="keywordtype">size_t</span> m_memory_buffer_capacity;</div>
<div class="line"><a name="l02808"></a><span class="lineno"> 2808</span>&#160;  <span class="keywordtype">size_t</span> m_memory_buffer_size;</div>
<div class="line"><a name="l02809"></a><span class="lineno"> 2809</span>&#160;  <span class="keywordtype">size_t</span> m_memory_buffer_ptr;</div>
<div class="line"><a name="l02810"></a><span class="lineno"> 2810</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* m_memory_buffer;</div>
<div class="line"><a name="l02811"></a><span class="lineno"> 2811</span>&#160; </div>
<div class="line"><a name="l02812"></a><span class="lineno"> 2812</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02813"></a><span class="lineno"> 2813</span>&#160;  <span class="comment">// prohibit default construction, copy construction, and operator=</span></div>
<div class="line"><a name="l02814"></a><span class="lineno"> 2814</span>&#160;  <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>( ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02815"></a><span class="lineno"> 2815</span>&#160;  <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02816"></a><span class="lineno"> 2816</span>&#160;  <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>&amp; operator=( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_file.html">ON_BinaryFile</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02817"></a><span class="lineno"> 2817</span>&#160;};</div>
<div class="line"><a name="l02818"></a><span class="lineno"> 2818</span>&#160; </div>
<div class="line"><a name="l02819"></a><span class="lineno"><a class="line" href="class_o_n___binary_archive_buffer.html"> 2819</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a> : <span class="keyword">public</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div>
<div class="line"><a name="l02820"></a><span class="lineno"> 2820</span>&#160;{</div>
<div class="line"><a name="l02821"></a><span class="lineno"> 2821</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02822"></a><span class="lineno"> 2822</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02823"></a><span class="lineno"> 2823</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02824"></a><span class="lineno"> 2824</span>&#160;<span class="comment">    Create an ON_BinaryArchive that reads/writes from an ON_Buffer.</span></div>
<div class="line"><a name="l02825"></a><span class="lineno"> 2825</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02826"></a><span class="lineno"> 2826</span>&#160;<span class="comment">    mode - [in]</span></div>
<div class="line"><a name="l02827"></a><span class="lineno"> 2827</span>&#160;<span class="comment">    buffer - [in]</span></div>
<div class="line"><a name="l02828"></a><span class="lineno"> 2828</span>&#160;<span class="comment">  Remarks:</span></div>
<div class="line"><a name="l02829"></a><span class="lineno"> 2829</span>&#160;<span class="comment">    If a non-null buffer is specifed, then do not call SetBuffer()</span></div>
<div class="line"><a name="l02830"></a><span class="lineno"> 2830</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02831"></a><span class="lineno"> 2831</span>&#160;  <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>( ON::archive_mode, <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>* buffer );</div>
<div class="line"><a name="l02832"></a><span class="lineno"> 2832</span>&#160; </div>
<div class="line"><a name="l02833"></a><span class="lineno"> 2833</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>();</div>
<div class="line"><a name="l02834"></a><span class="lineno"> 2834</span>&#160; </div>
<div class="line"><a name="l02835"></a><span class="lineno"> 2835</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02836"></a><span class="lineno"> 2836</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02837"></a><span class="lineno"> 2837</span>&#160;<span class="comment">    If the ON_BinaryArchiveBuffer class is created with the constructor</span></div>
<div class="line"><a name="l02838"></a><span class="lineno"> 2838</span>&#160;<span class="comment">    that has a single &quot;mode&quot; parameter, then use SetBuffer()</span></div>
<div class="line"><a name="l02839"></a><span class="lineno"> 2839</span>&#160;<span class="comment">    to specify the buffer to read/write from before using</span></div>
<div class="line"><a name="l02840"></a><span class="lineno"> 2840</span>&#160;<span class="comment">    the ON_BinaryArchiveBuffer.</span></div>
<div class="line"><a name="l02841"></a><span class="lineno"> 2841</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02842"></a><span class="lineno"> 2842</span>&#160;<span class="comment">    buffer - [in]</span></div>
<div class="line"><a name="l02843"></a><span class="lineno"> 2843</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02844"></a><span class="lineno"> 2844</span>&#160;<span class="comment">    True if the buffer is set.  Once the buffer is set it</span></div>
<div class="line"><a name="l02845"></a><span class="lineno"> 2845</span>&#160;<span class="comment">    cannot be changed.</span></div>
<div class="line"><a name="l02846"></a><span class="lineno"> 2846</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02847"></a><span class="lineno"> 2847</span>&#160;  <span class="keywordtype">bool</span> SetBuffer( <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>* buffer );</div>
<div class="line"><a name="l02848"></a><span class="lineno"> 2848</span>&#160; </div>
<div class="line"><a name="l02849"></a><span class="lineno"> 2849</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02850"></a><span class="lineno"> 2850</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l02851"></a><span class="lineno"> 2851</span>&#160;<span class="comment">    Buffer being read/written. </span></div>
<div class="line"><a name="l02852"></a><span class="lineno"> 2852</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02853"></a><span class="lineno"> 2853</span>&#160;  <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>* Buffer() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02854"></a><span class="lineno"> 2854</span>&#160; </div>
<div class="line"><a name="l02855"></a><span class="lineno"> 2855</span>&#160;  <span class="comment">// virtual ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l02856"></a><span class="lineno"> 2856</span>&#160;  <span class="keywordtype">size_t</span> CurrentPosition() <span class="keyword">const</span>; </div>
<div class="line"><a name="l02857"></a><span class="lineno"> 2857</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition(<span class="keywordtype">int</span>);</div>
<div class="line"><a name="l02858"></a><span class="lineno"> 2858</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart(<span class="keywordtype">size_t</span>);</div>
<div class="line"><a name="l02859"></a><span class="lineno"> 2859</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02860"></a><span class="lineno"> 2860</span>&#160; </div>
<div class="line"><a name="l02861"></a><span class="lineno"> 2861</span>&#160;  <span class="keywordtype">bool</span> SeekFromEnd( ON__INT64 ); </div>
<div class="line"><a name="l02862"></a><span class="lineno"> 2862</span>&#160; </div>
<div class="line"><a name="l02863"></a><span class="lineno"> 2863</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l02864"></a><span class="lineno"> 2864</span>&#160;  <span class="keywordtype">size_t</span> Read( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02865"></a><span class="lineno"> 2865</span>&#160;  <span class="keywordtype">size_t</span> Write( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02866"></a><span class="lineno"> 2866</span>&#160;  <span class="keywordtype">bool</span> Flush();</div>
<div class="line"><a name="l02867"></a><span class="lineno"> 2867</span>&#160; </div>
<div class="line"><a name="l02868"></a><span class="lineno"> 2868</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02869"></a><span class="lineno"> 2869</span>&#160;  <span class="comment">// Buffer being read/written.</span></div>
<div class="line"><a name="l02870"></a><span class="lineno"> 2870</span>&#160;  <a class="code" href="class_o_n___buffer.html">ON_Buffer</a>* m_buffer;</div>
<div class="line"><a name="l02871"></a><span class="lineno"> 2871</span>&#160; </div>
<div class="line"><a name="l02872"></a><span class="lineno"> 2872</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02873"></a><span class="lineno"> 2873</span>&#160;  <span class="comment">// prohibit use - you should specify a buffer.</span></div>
<div class="line"><a name="l02874"></a><span class="lineno"> 2874</span>&#160;  <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>( ON::archive_mode );</div>
<div class="line"><a name="l02875"></a><span class="lineno"> 2875</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02876"></a><span class="lineno"> 2876</span>&#160;  <span class="comment">// prohibit default construction, copy construction, and operator=</span></div>
<div class="line"><a name="l02877"></a><span class="lineno"> 2877</span>&#160;  <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>( ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02878"></a><span class="lineno"> 2878</span>&#160;  <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02879"></a><span class="lineno"> 2879</span>&#160;  <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>&amp; operator=( <span class="keyword">const</span> <a class="code" href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a>&amp; ); <span class="comment">// no implementation</span></div>
<div class="line"><a name="l02880"></a><span class="lineno"> 2880</span>&#160;};</div>
<div class="line"><a name="l02881"></a><span class="lineno"> 2881</span>&#160; </div>
<div class="line"><a name="l02882"></a><span class="lineno"> 2882</span>&#160; </div>
<div class="line"><a name="l02883"></a><span class="lineno"><a class="line" href="class_o_n___read3dm_buffer_archive.html"> 2883</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a> : <span class="keyword">public</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div>
<div class="line"><a name="l02884"></a><span class="lineno"> 2884</span>&#160;{</div>
<div class="line"><a name="l02885"></a><span class="lineno"> 2885</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02886"></a><span class="lineno"> 2886</span>&#160; </div>
<div class="line"><a name="l02887"></a><span class="lineno"> 2887</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02888"></a><span class="lineno"> 2888</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02889"></a><span class="lineno"> 2889</span>&#160;<span class="comment">    Construct an ON_BinaryArchive for reading information from a memory buffer.</span></div>
<div class="line"><a name="l02890"></a><span class="lineno"> 2890</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02891"></a><span class="lineno"> 2891</span>&#160;<span class="comment">    sizeof_buffer - [in] size of buffer in bytes (&gt;0)</span></div>
<div class="line"><a name="l02892"></a><span class="lineno"> 2892</span>&#160;<span class="comment">    buffer - [in] memory buffer containing binary archive</span></div>
<div class="line"><a name="l02893"></a><span class="lineno"> 2893</span>&#160;<span class="comment">    bCopyBuffer - [in]</span></div>
<div class="line"><a name="l02894"></a><span class="lineno"> 2894</span>&#160;<span class="comment">      true - copy the input buffer.  </span></div>
<div class="line"><a name="l02895"></a><span class="lineno"> 2895</span>&#160;<span class="comment">          Useful when the buffer may be destroyed while this class is still in use.</span></div>
<div class="line"><a name="l02896"></a><span class="lineno"> 2896</span>&#160;<span class="comment">      false - Do not copy the input buffer.  </span></div>
<div class="line"><a name="l02897"></a><span class="lineno"> 2897</span>&#160;<span class="comment">          In this case you are responsible for making certain the input buffer </span></div>
<div class="line"><a name="l02898"></a><span class="lineno"> 2898</span>&#160;<span class="comment">          is valid while this class is in use.</span></div>
<div class="line"><a name="l02899"></a><span class="lineno"> 2899</span>&#160;<span class="comment">    archive_3dm_version  - [in] (1,2,3,4 or 5)</span></div>
<div class="line"><a name="l02900"></a><span class="lineno"> 2900</span>&#160;<span class="comment">    archive_opennurbs_version - [in] YYYYMMDDn</span></div>
<div class="line"><a name="l02901"></a><span class="lineno"> 2901</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02902"></a><span class="lineno"> 2902</span>&#160;  <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>( </div>
<div class="line"><a name="l02903"></a><span class="lineno"> 2903</span>&#160;    <span class="keywordtype">size_t</span> sizeof_buffer, </div>
<div class="line"><a name="l02904"></a><span class="lineno"> 2904</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">void</span>* buffer,</div>
<div class="line"><a name="l02905"></a><span class="lineno"> 2905</span>&#160;    <span class="keywordtype">bool</span> bCopyBuffer,</div>
<div class="line"><a name="l02906"></a><span class="lineno"> 2906</span>&#160;    <span class="keywordtype">int</span> archive_3dm_version,</div>
<div class="line"><a name="l02907"></a><span class="lineno"> 2907</span>&#160;    <span class="keywordtype">int</span> archive_opennurbs_version</div>
<div class="line"><a name="l02908"></a><span class="lineno"> 2908</span>&#160;    );</div>
<div class="line"><a name="l02909"></a><span class="lineno"> 2909</span>&#160; </div>
<div class="line"><a name="l02910"></a><span class="lineno"> 2910</span>&#160;  ~<a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>();</div>
<div class="line"><a name="l02911"></a><span class="lineno"> 2911</span>&#160; </div>
<div class="line"><a name="l02912"></a><span class="lineno"> 2912</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02913"></a><span class="lineno"> 2913</span>&#160;<span class="comment">  Returns: </span></div>
<div class="line"><a name="l02914"></a><span class="lineno"> 2914</span>&#160;<span class="comment">     value of m_sizeof_buffer</span></div>
<div class="line"><a name="l02915"></a><span class="lineno"> 2915</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02916"></a><span class="lineno"> 2916</span>&#160;  <span class="keywordtype">size_t</span> SizeOfBuffer() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02917"></a><span class="lineno"> 2917</span>&#160; </div>
<div class="line"><a name="l02918"></a><span class="lineno"> 2918</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02919"></a><span class="lineno"> 2919</span>&#160;<span class="comment">  Returns: </span></div>
<div class="line"><a name="l02920"></a><span class="lineno"> 2920</span>&#160;<span class="comment">     value of m_buffer</span></div>
<div class="line"><a name="l02921"></a><span class="lineno"> 2921</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02922"></a><span class="lineno"> 2922</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">void</span>* Buffer() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02923"></a><span class="lineno"> 2923</span>&#160; </div>
<div class="line"><a name="l02924"></a><span class="lineno"> 2924</span>&#160;  <span class="comment">// ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l02925"></a><span class="lineno"> 2925</span>&#160;  <span class="keywordtype">size_t</span> CurrentPosition() <span class="keyword">const</span>; </div>
<div class="line"><a name="l02926"></a><span class="lineno"> 2926</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition(<span class="keywordtype">int</span>); </div>
<div class="line"><a name="l02927"></a><span class="lineno"> 2927</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart(<span class="keywordtype">size_t</span>);</div>
<div class="line"><a name="l02928"></a><span class="lineno"> 2928</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02929"></a><span class="lineno"> 2929</span>&#160; </div>
<div class="line"><a name="l02930"></a><span class="lineno"> 2930</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l02931"></a><span class="lineno"> 2931</span>&#160;  <span class="comment">// ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l02932"></a><span class="lineno"> 2932</span>&#160;  <span class="keywordtype">size_t</span> Read( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* ); <span class="comment">// return actual number of bytes read (like fread())</span></div>
<div class="line"><a name="l02933"></a><span class="lineno"> 2933</span>&#160;  <span class="keywordtype">size_t</span> Write( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* );</div>
<div class="line"><a name="l02934"></a><span class="lineno"> 2934</span>&#160;  <span class="keywordtype">bool</span> Flush();</div>
<div class="line"><a name="l02935"></a><span class="lineno"> 2935</span>&#160; </div>
<div class="line"><a name="l02936"></a><span class="lineno"> 2936</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02937"></a><span class="lineno"> 2937</span>&#160;  <span class="keywordtype">void</span>* m_p;</div>
<div class="line"><a name="l02938"></a><span class="lineno"> 2938</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* m_buffer;</div>
<div class="line"><a name="l02939"></a><span class="lineno"> 2939</span>&#160;  <span class="keywordtype">size_t</span> m_sizeof_buffer;</div>
<div class="line"><a name="l02940"></a><span class="lineno"> 2940</span>&#160;  <span class="keywordtype">size_t</span> m_buffer_position;</div>
<div class="line"><a name="l02941"></a><span class="lineno"> 2941</span>&#160;  ON__INT_PTR m_reserved1;</div>
<div class="line"><a name="l02942"></a><span class="lineno"> 2942</span>&#160;  ON__INT_PTR m_reserved2;</div>
<div class="line"><a name="l02943"></a><span class="lineno"> 2943</span>&#160;  ON__INT_PTR m_reserved3;</div>
<div class="line"><a name="l02944"></a><span class="lineno"> 2944</span>&#160;  ON__INT_PTR m_reserved4;</div>
<div class="line"><a name="l02945"></a><span class="lineno"> 2945</span>&#160; </div>
<div class="line"><a name="l02946"></a><span class="lineno"> 2946</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l02947"></a><span class="lineno"> 2947</span>&#160;  <span class="comment">// prohibit use - no implementation</span></div>
<div class="line"><a name="l02948"></a><span class="lineno"> 2948</span>&#160;  <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>(); </div>
<div class="line"><a name="l02949"></a><span class="lineno"> 2949</span>&#160;  <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>( <span class="keyword">const</span> <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>&amp; );</div>
<div class="line"><a name="l02950"></a><span class="lineno"> 2950</span>&#160;  <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>&amp; operator=(<span class="keyword">const</span> <a class="code" href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a>&amp;);</div>
<div class="line"><a name="l02951"></a><span class="lineno"> 2951</span>&#160;};</div>
<div class="line"><a name="l02952"></a><span class="lineno"> 2952</span>&#160; </div>
<div class="line"><a name="l02953"></a><span class="lineno"><a class="line" href="class_o_n___write3dm_buffer_archive.html"> 2953</a></span>&#160;<span class="keyword">class </span>ON_CLASS <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a> : <span class="keyword">public</span> <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div>
<div class="line"><a name="l02954"></a><span class="lineno"> 2954</span>&#160;{</div>
<div class="line"><a name="l02955"></a><span class="lineno"> 2955</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l02956"></a><span class="lineno"> 2956</span>&#160; </div>
<div class="line"><a name="l02957"></a><span class="lineno"> 2957</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02958"></a><span class="lineno"> 2958</span>&#160;<span class="comment">  Description:</span></div>
<div class="line"><a name="l02959"></a><span class="lineno"> 2959</span>&#160;<span class="comment">    Construct an ON_BinaryArchive for writing information to a memory buffer.</span></div>
<div class="line"><a name="l02960"></a><span class="lineno"> 2960</span>&#160;<span class="comment">  Parameters:</span></div>
<div class="line"><a name="l02961"></a><span class="lineno"> 2961</span>&#160;<span class="comment">    initial_sizeof_buffer - [in] </span></div>
<div class="line"><a name="l02962"></a><span class="lineno"> 2962</span>&#160;<span class="comment">      initial size of buffer in bytes (&gt;=0)</span></div>
<div class="line"><a name="l02963"></a><span class="lineno"> 2963</span>&#160;<span class="comment">      If you are unable to estimate the size you will need, pass in zero.</span></div>
<div class="line"><a name="l02964"></a><span class="lineno"> 2964</span>&#160;<span class="comment">    max_sizeof_buffer - [in] </span></div>
<div class="line"><a name="l02965"></a><span class="lineno"> 2965</span>&#160;<span class="comment">      maximum size of buffer in bytes (&gt;=0)</span></div>
<div class="line"><a name="l02966"></a><span class="lineno"> 2966</span>&#160;<span class="comment">      If max_sizeof_buffer &gt; 0 and the amount of information saved </span></div>
<div class="line"><a name="l02967"></a><span class="lineno"> 2967</span>&#160;<span class="comment">      requires a buffer larger than this size, then writing fails. </span></div>
<div class="line"><a name="l02968"></a><span class="lineno"> 2968</span>&#160;<span class="comment">      If max_sizeof_buffer &lt;= 0, then no buffer size limits are enforced.</span></div>
<div class="line"><a name="l02969"></a><span class="lineno"> 2969</span>&#160;<span class="comment">    archive_3dm_version  - [in] (0, ,2,3,4 or 50)</span></div>
<div class="line"><a name="l02970"></a><span class="lineno"> 2970</span>&#160;<span class="comment">      Pass 0 or ON_BinaryArchive::CurrentArchiveVersion() to write the</span></div>
<div class="line"><a name="l02971"></a><span class="lineno"> 2971</span>&#160;<span class="comment">      version of opennurbs archives used by lastest version of Rhino.</span></div>
<div class="line"><a name="l02972"></a><span class="lineno"> 2972</span>&#160;<span class="comment">    archive_opennurbs_version - [in] YYYYMMDDn</span></div>
<div class="line"><a name="l02973"></a><span class="lineno"> 2973</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02974"></a><span class="lineno"> 2974</span>&#160;  <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>( </div>
<div class="line"><a name="l02975"></a><span class="lineno"> 2975</span>&#160;    <span class="keywordtype">size_t</span> initial_sizeof_buffer, </div>
<div class="line"><a name="l02976"></a><span class="lineno"> 2976</span>&#160;    <span class="keywordtype">size_t</span> max_sizeof_buffer, </div>
<div class="line"><a name="l02977"></a><span class="lineno"> 2977</span>&#160;    <span class="keywordtype">int</span> archive_3dm_version,</div>
<div class="line"><a name="l02978"></a><span class="lineno"> 2978</span>&#160;    <span class="keywordtype">int</span> archive_opennurbs_version</div>
<div class="line"><a name="l02979"></a><span class="lineno"> 2979</span>&#160;    );</div>
<div class="line"><a name="l02980"></a><span class="lineno"> 2980</span>&#160; </div>
<div class="line"><a name="l02981"></a><span class="lineno"> 2981</span>&#160;  ~<a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>();</div>
<div class="line"><a name="l02982"></a><span class="lineno"> 2982</span>&#160; </div>
<div class="line"><a name="l02983"></a><span class="lineno"> 2983</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02984"></a><span class="lineno"> 2984</span>&#160;<span class="comment">  Returns: </span></div>
<div class="line"><a name="l02985"></a><span class="lineno"> 2985</span>&#160;<span class="comment">     Size of the archive in bytes.</span></div>
<div class="line"><a name="l02986"></a><span class="lineno"> 2986</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02987"></a><span class="lineno"> 2987</span>&#160;  <span class="keywordtype">size_t</span> SizeOfArchive() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02988"></a><span class="lineno"> 2988</span>&#160; </div>
<div class="line"><a name="l02989"></a><span class="lineno"> 2989</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02990"></a><span class="lineno"> 2990</span>&#160;<span class="comment">  Returns: </span></div>
<div class="line"><a name="l02991"></a><span class="lineno"> 2991</span>&#160;<span class="comment">     value of m_sizeof_buffer</span></div>
<div class="line"><a name="l02992"></a><span class="lineno"> 2992</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l02993"></a><span class="lineno"> 2993</span>&#160;  <span class="keywordtype">size_t</span> SizeOfBuffer() <span class="keyword">const</span>;</div>
<div class="line"><a name="l02994"></a><span class="lineno"> 2994</span>&#160; </div>
<div class="line"><a name="l02995"></a><span class="lineno"> 2995</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l02996"></a><span class="lineno"> 2996</span>&#160;<span class="comment">  Returns: </span></div>
<div class="line"><a name="l02997"></a><span class="lineno"> 2997</span>&#160;<span class="comment">     value of m_buffer.</span></div>
<div class="line"><a name="l02998"></a><span class="lineno"> 2998</span>&#160;<span class="comment">     SizeOfArchive() reports the number of bytes</span></div>
<div class="line"><a name="l02999"></a><span class="lineno"> 2999</span>&#160;<span class="comment">     written to this buffer.</span></div>
<div class="line"><a name="l03000"></a><span class="lineno"> 3000</span>&#160;<span class="comment">     SizeOfBuffer() reports the number of bytes</span></div>
<div class="line"><a name="l03001"></a><span class="lineno"> 3001</span>&#160;<span class="comment">     allocated in this buffer.</span></div>
<div class="line"><a name="l03002"></a><span class="lineno"> 3002</span>&#160;<span class="comment">     </span></div>
<div class="line"><a name="l03003"></a><span class="lineno"> 3003</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l03004"></a><span class="lineno"> 3004</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">void</span>* Buffer() <span class="keyword">const</span>;</div>
<div class="line"><a name="l03005"></a><span class="lineno"> 3005</span>&#160; </div>
<div class="line"><a name="l03006"></a><span class="lineno"> 3006</span>&#160;  <span class="comment">/*</span></div>
<div class="line"><a name="l03007"></a><span class="lineno"> 3007</span>&#160;<span class="comment">  Returns:</span></div>
<div class="line"><a name="l03008"></a><span class="lineno"> 3008</span>&#160;<span class="comment">    The pointer to the buffer and sets all </span></div>
<div class="line"><a name="l03009"></a><span class="lineno"> 3009</span>&#160;<span class="comment">    members on this archive back to zero.</span></div>
<div class="line"><a name="l03010"></a><span class="lineno"> 3010</span>&#160;<span class="comment">    The caller is responsible for calling onfree() on</span></div>
<div class="line"><a name="l03011"></a><span class="lineno"> 3011</span>&#160;<span class="comment">    the pointer when finished with the buffer.</span></div>
<div class="line"><a name="l03012"></a><span class="lineno"> 3012</span>&#160;<span class="comment">  */</span></div>
<div class="line"><a name="l03013"></a><span class="lineno"> 3013</span>&#160;  <span class="keywordtype">void</span>* HarvestBuffer();</div>
<div class="line"><a name="l03014"></a><span class="lineno"> 3014</span>&#160; </div>
<div class="line"><a name="l03015"></a><span class="lineno"> 3015</span>&#160;  <span class="comment">// ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l03016"></a><span class="lineno"> 3016</span>&#160;  <span class="keywordtype">size_t</span> CurrentPosition() <span class="keyword">const</span>; </div>
<div class="line"><a name="l03017"></a><span class="lineno"> 3017</span>&#160;  <span class="keywordtype">bool</span> SeekFromCurrentPosition(<span class="keywordtype">int</span>); </div>
<div class="line"><a name="l03018"></a><span class="lineno"> 3018</span>&#160;  <span class="keywordtype">bool</span> SeekFromStart(<span class="keywordtype">size_t</span>);</div>
<div class="line"><a name="l03019"></a><span class="lineno"> 3019</span>&#160;  <span class="keywordtype">bool</span> AtEnd() <span class="keyword">const</span>;</div>
<div class="line"><a name="l03020"></a><span class="lineno"> 3020</span>&#160; </div>
<div class="line"><a name="l03021"></a><span class="lineno"> 3021</span>&#160;<span class="keyword">protected</span>:</div>
<div class="line"><a name="l03022"></a><span class="lineno"> 3022</span>&#160;  <span class="comment">// ON_BinaryArchive overrides</span></div>
<div class="line"><a name="l03023"></a><span class="lineno"> 3023</span>&#160;  <span class="keywordtype">size_t</span> Read( <span class="keywordtype">size_t</span>, <span class="keywordtype">void</span>* ); </div>
<div class="line"><a name="l03024"></a><span class="lineno"> 3024</span>&#160;  <span class="keywordtype">size_t</span> Write( <span class="keywordtype">size_t</span>, <span class="keyword">const</span> <span class="keywordtype">void</span>* ); <span class="comment">// return actual number of bytes written (like fwrite())</span></div>
<div class="line"><a name="l03025"></a><span class="lineno"> 3025</span>&#160;  <span class="keywordtype">bool</span> Flush();</div>
<div class="line"><a name="l03026"></a><span class="lineno"> 3026</span>&#160; </div>
<div class="line"><a name="l03027"></a><span class="lineno"> 3027</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l03028"></a><span class="lineno"> 3028</span>&#160;  <span class="keywordtype">void</span> AllocBuffer(<span class="keywordtype">size_t</span>);</div>
<div class="line"><a name="l03029"></a><span class="lineno"> 3029</span>&#160;  <span class="keywordtype">void</span>* m_p;</div>
<div class="line"><a name="l03030"></a><span class="lineno"> 3030</span>&#160;  <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* m_buffer;</div>
<div class="line"><a name="l03031"></a><span class="lineno"> 3031</span>&#160;  <span class="keywordtype">size_t</span> m_sizeof_buffer;</div>
<div class="line"><a name="l03032"></a><span class="lineno"> 3032</span>&#160;  <span class="keyword">const</span> <span class="keywordtype">size_t</span> m_max_sizeof_buffer;</div>
<div class="line"><a name="l03033"></a><span class="lineno"> 3033</span>&#160;  <span class="keywordtype">size_t</span> m_sizeof_archive;</div>
<div class="line"><a name="l03034"></a><span class="lineno"> 3034</span>&#160;  <span class="keywordtype">size_t</span> m_buffer_position;</div>
<div class="line"><a name="l03035"></a><span class="lineno"> 3035</span>&#160;  ON__INT_PTR m_reserved1;</div>
<div class="line"><a name="l03036"></a><span class="lineno"> 3036</span>&#160;  ON__INT_PTR m_reserved2;</div>
<div class="line"><a name="l03037"></a><span class="lineno"> 3037</span>&#160;  ON__INT_PTR m_reserved3;</div>
<div class="line"><a name="l03038"></a><span class="lineno"> 3038</span>&#160;  ON__INT_PTR m_reserved4;</div>
<div class="line"><a name="l03039"></a><span class="lineno"> 3039</span>&#160; </div>
<div class="line"><a name="l03040"></a><span class="lineno"> 3040</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l03041"></a><span class="lineno"> 3041</span>&#160;  <span class="comment">// prohibit use - no implementation</span></div>
<div class="line"><a name="l03042"></a><span class="lineno"> 3042</span>&#160;  <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>(); </div>
<div class="line"><a name="l03043"></a><span class="lineno"> 3043</span>&#160;  <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>( <span class="keyword">const</span> <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>&amp; );</div>
<div class="line"><a name="l03044"></a><span class="lineno"> 3044</span>&#160;  <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>&amp; operator=(<span class="keyword">const</span> <a class="code" href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a>&amp;);</div>
<div class="line"><a name="l03045"></a><span class="lineno"> 3045</span>&#160;};</div>
<div class="line"><a name="l03046"></a><span class="lineno"> 3046</span>&#160; </div>
<div class="line"><a name="l03047"></a><span class="lineno"> 3047</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l03048"></a><span class="lineno"> 3048</span>&#160;<span class="comment">Description:</span></div>
<div class="line"><a name="l03049"></a><span class="lineno"> 3049</span>&#160;<span class="comment">  Create a simple archive that contains a single geometric object.</span></div>
<div class="line"><a name="l03050"></a><span class="lineno"> 3050</span>&#160;<span class="comment">Parameters:</span></div>
<div class="line"><a name="l03051"></a><span class="lineno"> 3051</span>&#160;<span class="comment">  archive - [in] destination archive.</span></div>
<div class="line"><a name="l03052"></a><span class="lineno"> 3052</span>&#160;<span class="comment">  version - [in] (0, 2, 3, 4, or 50) format version.archive version number.</span></div>
<div class="line"><a name="l03053"></a><span class="lineno"> 3053</span>&#160;<span class="comment">      Version 2 format can be read by Rhino 2 and Rhino 3.  Version</span></div>
<div class="line"><a name="l03054"></a><span class="lineno"> 3054</span>&#160;<span class="comment">      3 format can be read by Rhino 3.</span></div>
<div class="line"><a name="l03055"></a><span class="lineno"> 3055</span>&#160;<span class="comment">      Pass 0 or ON_BinaryArchive::CurrentArchiveVersion() to write</span></div>
<div class="line"><a name="l03056"></a><span class="lineno"> 3056</span>&#160;<span class="comment">      the latest version of archives supported by Rhino.</span></div>
<div class="line"><a name="l03057"></a><span class="lineno"> 3057</span>&#160;<span class="comment">  object - [in] object to be saved in the archive&#39;s object table.</span></div>
<div class="line"><a name="l03058"></a><span class="lineno"> 3058</span>&#160;<span class="comment">      This is typically some type of ON_Curve, ON_Surface, ON_Mesh,</span></div>
<div class="line"><a name="l03059"></a><span class="lineno"> 3059</span>&#160;<span class="comment">      or ON_Brep.</span></div>
<div class="line"><a name="l03060"></a><span class="lineno"> 3060</span>&#160;<span class="comment">Returns:</span></div>
<div class="line"><a name="l03061"></a><span class="lineno"> 3061</span>&#160;<span class="comment">  @untitled table</span></div>
<div class="line"><a name="l03062"></a><span class="lineno"> 3062</span>&#160;<span class="comment">  true     archive successfully written.</span></div>
<div class="line"><a name="l03063"></a><span class="lineno"> 3063</span>&#160;<span class="comment">  false    archive not successfully written.</span></div>
<div class="line"><a name="l03064"></a><span class="lineno"> 3064</span>&#160;<span class="comment">Example:</span></div>
<div class="line"><a name="l03065"></a><span class="lineno"> 3065</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l03066"></a><span class="lineno"> 3066</span>&#160;<span class="comment">          const char* filename = &quot;myfile.3dm&quot;;</span></div>
<div class="line"><a name="l03067"></a><span class="lineno"> 3067</span>&#160;<span class="comment">          FILE* fp = ON::OpenFile( filename, &quot;wb&quot; );</span></div>
<div class="line"><a name="l03068"></a><span class="lineno"> 3068</span>&#160;<span class="comment">          ON_BinaryFile file( fp, ON::write3dm );</span></div>
<div class="line"><a name="l03069"></a><span class="lineno"> 3069</span>&#160;<span class="comment">          ON_BOOL32 ok = ON_WriteArchive( archive, geometry );</span></div>
<div class="line"><a name="l03070"></a><span class="lineno"> 3070</span>&#160;<span class="comment">          ON::CloseFile( fp );</span></div>
<div class="line"><a name="l03071"></a><span class="lineno"> 3071</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l03072"></a><span class="lineno"> 3072</span>&#160;<span class="comment">Remarks:</span></div>
<div class="line"><a name="l03073"></a><span class="lineno"> 3073</span>&#160;<span class="comment">  The object table in the archive will contain a single</span></div>
<div class="line"><a name="l03074"></a><span class="lineno"> 3074</span>&#160;<span class="comment">  object.</span></div>
<div class="line"><a name="l03075"></a><span class="lineno"> 3075</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l03076"></a><span class="lineno"> 3076</span>&#160;ON_DECL</div>
<div class="line"><a name="l03077"></a><span class="lineno"> 3077</span>&#160;<span class="keywordtype">bool</span> ON_WriteOneObjectArchive( </div>
<div class="line"><a name="l03078"></a><span class="lineno"> 3078</span>&#160;          <a class="code" href="class_o_n___binary_archive.html">ON_BinaryArchive</a>&amp; archive,</div>
<div class="line"><a name="l03079"></a><span class="lineno"> 3079</span>&#160;          <span class="keywordtype">int</span> version,</div>
<div class="line"><a name="l03080"></a><span class="lineno"> 3080</span>&#160;          <span class="keyword">const</span> <a class="code" href="class_o_n___object.html">ON_Object</a>&amp; <span class="keywordtype">object</span></div>
<div class="line"><a name="l03081"></a><span class="lineno"> 3081</span>&#160;          );</div>
<div class="line"><a name="l03082"></a><span class="lineno"> 3082</span>&#160; </div>
<div class="line"><a name="l03083"></a><span class="lineno"> 3083</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l03084"></a><span class="lineno"> 3084</span>&#160; </div>
<div class="ttc" id="aclass_o_n__2d_point_html"><div class="ttname"><a href="class_o_n__2d_point.html">ON_2dPoint</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:267</div></div>
<div class="ttc" id="aclass_o_n__2d_vector_html"><div class="ttname"><a href="class_o_n__2d_vector.html">ON_2dVector</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:675</div></div>
<div class="ttc" id="aclass_o_n__3d_point_html"><div class="ttname"><a href="class_o_n__3d_point.html">ON_3dPoint</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:419</div></div>
<div class="ttc" id="aclass_o_n__3d_vector_html"><div class="ttname"><a href="class_o_n__3d_vector.html">ON_3dVector</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:953</div></div>
<div class="ttc" id="aclass_o_n__3dm_goo_html"><div class="ttname"><a href="class_o_n__3dm_goo.html">ON_3dmGoo</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:2733</div></div>
<div class="ttc" id="aclass_o_n__3dm_object_attributes_html"><div class="ttname"><a href="class_o_n__3dm_object_attributes.html">ON_3dmObjectAttributes</a></div><div class="ttdef"><b>Definition:</b> opennurbs_3dm_attributes.h:42</div></div>
<div class="ttc" id="aclass_o_n__3dm_properties_html"><div class="ttname"><a href="class_o_n__3dm_properties.html">ON_3dmProperties</a></div><div class="ttdef"><b>Definition:</b> opennurbs_3dm_properties.h:120</div></div>
<div class="ttc" id="aclass_o_n__3dm_settings_html"><div class="ttname"><a href="class_o_n__3dm_settings.html">ON_3dmSettings</a></div><div class="ttdef"><b>Definition:</b> opennurbs_3dm_settings.h:788</div></div>
<div class="ttc" id="aclass_o_n__4d_point_html"><div class="ttname"><a href="class_o_n__4d_point.html">ON_4dPoint</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:573</div></div>
<div class="ttc" id="aclass_o_n___arc_html"><div class="ttname"><a href="class_o_n___arc.html">ON_Arc</a></div><div class="ttdef"><b>Definition:</b> opennurbs_arc.h:35</div></div>
<div class="ttc" id="aclass_o_n___binary_archive_buffer_html"><div class="ttname"><a href="class_o_n___binary_archive_buffer.html">ON_BinaryArchiveBuffer</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:2820</div></div>
<div class="ttc" id="aclass_o_n___binary_archive_html"><div class="ttname"><a href="class_o_n___binary_archive.html">ON_BinaryArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:732</div></div>
<div class="ttc" id="aclass_o_n___binary_file_html"><div class="ttname"><a href="class_o_n___binary_file.html">ON_BinaryFile</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:2752</div></div>
<div class="ttc" id="aclass_o_n___bitmap_html"><div class="ttname"><a href="class_o_n___bitmap.html">ON_Bitmap</a></div><div class="ttdef"><b>Definition:</b> opennurbs_bitmap.h:29</div></div>
<div class="ttc" id="aclass_o_n___bounding_box_html"><div class="ttname"><a href="class_o_n___bounding_box.html">ON_BoundingBox</a></div><div class="ttdef"><b>Definition:</b> opennurbs_bounding_box.h:26</div></div>
<div class="ttc" id="aclass_o_n___buffer_html"><div class="ttname"><a href="class_o_n___buffer.html">ON_Buffer</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:335</div></div>
<div class="ttc" id="aclass_o_n___circle_html"><div class="ttname"><a href="class_o_n___circle.html">ON_Circle</a></div><div class="ttdef"><b>Definition:</b> opennurbs_circle.h:34</div></div>
<div class="ttc" id="aclass_o_n___class_array_html"><div class="ttname"><a href="class_o_n___class_array.html">ON_ClassArray</a></div><div class="ttdef"><b>Definition:</b> opennurbs_array.h:822</div></div>
<div class="ttc" id="aclass_o_n___color_html"><div class="ttname"><a href="class_o_n___color.html">ON_Color</a></div><div class="ttdef"><b>Definition:</b> opennurbs_color.h:25</div></div>
<div class="ttc" id="aclass_o_n___dim_style_html"><div class="ttname"><a href="class_o_n___dim_style.html">ON_DimStyle</a></div><div class="ttdef"><b>Definition:</b> opennurbs_dimstyle.h:21</div></div>
<div class="ttc" id="aclass_o_n___display_material_ref_html"><div class="ttname"><a href="class_o_n___display_material_ref.html">ON_DisplayMaterialRef</a></div><div class="ttdef"><b>Definition:</b> opennurbs_linestyle.h:44</div></div>
<div class="ttc" id="aclass_o_n___file_iterator_html"><div class="ttname"><a href="class_o_n___file_iterator.html">ON_FileIterator</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:188</div></div>
<div class="ttc" id="aclass_o_n___file_stream_html"><div class="ttname"><a href="class_o_n___file_stream.html">ON_FileStream</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:21</div></div>
<div class="ttc" id="aclass_o_n___font_html"><div class="ttname"><a href="class_o_n___font.html">ON_Font</a></div><div class="ttdef"><b>Definition:</b> opennurbs_font.h:21</div></div>
<div class="ttc" id="aclass_o_n___group_html"><div class="ttname"><a href="class_o_n___group.html">ON_Group</a></div><div class="ttdef"><b>Definition:</b> opennurbs_group.h:21</div></div>
<div class="ttc" id="aclass_o_n___hatch_pattern_html"><div class="ttname"><a href="class_o_n___hatch_pattern.html">ON_HatchPattern</a></div><div class="ttdef"><b>Definition:</b> opennurbs_hatch.h:313</div></div>
<div class="ttc" id="aclass_o_n___history_record_html"><div class="ttname"><a href="class_o_n___history_record.html">ON_HistoryRecord</a></div><div class="ttdef"><b>Definition:</b> opennurbs_object_history.h:84</div></div>
<div class="ttc" id="aclass_o_n___instance_definition_html"><div class="ttname"><a href="class_o_n___instance_definition.html">ON_InstanceDefinition</a></div><div class="ttdef"><b>Definition:</b> opennurbs_instance.h:28</div></div>
<div class="ttc" id="aclass_o_n___interval_html"><div class="ttname"><a href="class_o_n___interval.html">ON_Interval</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:49</div></div>
<div class="ttc" id="aclass_o_n___layer_html"><div class="ttname"><a href="class_o_n___layer.html">ON_Layer</a></div><div class="ttdef"><b>Definition:</b> opennurbs_layer.h:21</div></div>
<div class="ttc" id="aclass_o_n___light_html"><div class="ttname"><a href="class_o_n___light.html">ON_Light</a></div><div class="ttdef"><b>Definition:</b> opennurbs_light.h:21</div></div>
<div class="ttc" id="aclass_o_n___line_html"><div class="ttname"><a href="class_o_n___line.html">ON_Line</a></div><div class="ttdef"><b>Definition:</b> opennurbs_line.h:21</div></div>
<div class="ttc" id="aclass_o_n___linetype_html"><div class="ttname"><a href="class_o_n___linetype.html">ON_Linetype</a></div><div class="ttdef"><b>Definition:</b> opennurbs_linetype.h:41</div></div>
<div class="ttc" id="aclass_o_n___linetype_segment_html"><div class="ttname"><a href="class_o_n___linetype_segment.html">ON_LinetypeSegment</a></div><div class="ttdef"><b>Definition:</b> opennurbs_linestyle.h:84</div></div>
<div class="ttc" id="aclass_o_n___material_html"><div class="ttname"><a href="class_o_n___material.html">ON_Material</a></div><div class="ttdef"><b>Definition:</b> opennurbs_material.h:26</div></div>
<div class="ttc" id="aclass_o_n___object_array_html"><div class="ttname"><a href="class_o_n___object_array.html">ON_ObjectArray</a></div><div class="ttdef"><b>Definition:</b> opennurbs_array.h:1121</div></div>
<div class="ttc" id="aclass_o_n___object_html"><div class="ttname"><a href="class_o_n___object.html">ON_Object</a></div><div class="ttdef"><b>Definition:</b> opennurbs_object.h:377</div></div>
<div class="ttc" id="aclass_o_n___plane_equation_html"><div class="ttname"><a href="class_o_n___plane_equation.html">ON_PlaneEquation</a></div><div class="ttdef"><b>Definition:</b> opennurbs_point.h:1193</div></div>
<div class="ttc" id="aclass_o_n___plane_html"><div class="ttname"><a href="class_o_n___plane.html">ON_Plane</a></div><div class="ttdef"><b>Definition:</b> opennurbs_plane.h:21</div></div>
<div class="ttc" id="aclass_o_n___read3dm_buffer_archive_html"><div class="ttname"><a href="class_o_n___read3dm_buffer_archive.html">ON_Read3dmBufferArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:2884</div></div>
<div class="ttc" id="aclass_o_n___simple_array_html"><div class="ttname"><a href="class_o_n___simple_array.html">ON_SimpleArray</a></div><div class="ttdef"><b>Definition:</b> opennurbs_array.h:47</div></div>
<div class="ttc" id="aclass_o_n___string_html"><div class="ttname"><a href="class_o_n___string.html">ON_String</a></div><div class="ttdef"><b>Definition:</b> opennurbs_string.h:406</div></div>
<div class="ttc" id="aclass_o_n___text_log_html"><div class="ttname"><a href="class_o_n___text_log.html">ON_TextLog</a></div><div class="ttdef"><b>Definition:</b> opennurbs_textlog.h:23</div></div>
<div class="ttc" id="aclass_o_n___texture_mapping_html"><div class="ttname"><a href="class_o_n___texture_mapping.html">ON_TextureMapping</a></div><div class="ttdef"><b>Definition:</b> opennurbs_texture_mapping.h:38</div></div>
<div class="ttc" id="aclass_o_n___u_u_i_d_html"><div class="ttname"><a href="class_o_n___u_u_i_d.html">ON_UUID</a></div><div class="ttdef"><b>Definition:</b> opennurbs_uuid.h:32</div></div>
<div class="ttc" id="aclass_o_n___user_data_html"><div class="ttname"><a href="class_o_n___user_data.html">ON_UserData</a></div><div class="ttdef"><b>Definition:</b> opennurbs_userdata.h:21</div></div>
<div class="ttc" id="aclass_o_n___write3dm_buffer_archive_html"><div class="ttname"><a href="class_o_n___write3dm_buffer_archive.html">ON_Write3dmBufferArchive</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:2954</div></div>
<div class="ttc" id="aclass_o_n___xform_html"><div class="ttname"><a href="class_o_n___xform.html">ON_Xform</a></div><div class="ttdef"><b>Definition:</b> opennurbs_xform.h:29</div></div>
<div class="ttc" id="aclass_o_n__w_string_html"><div class="ttname"><a href="class_o_n__w_string.html">ON_wString</a></div><div class="ttdef"><b>Definition:</b> opennurbs_string.h:701</div></div>
<div class="ttc" id="astruct_o_n__3_d_m___b_i_g___c_h_u_n_k_html"><div class="ttname"><a href="struct_o_n__3_d_m___b_i_g___c_h_u_n_k.html">ON_3DM_BIG_CHUNK</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:677</div></div>
<div class="ttc" id="astruct_o_n__3_d_m___c_h_u_n_k_html"><div class="ttname"><a href="struct_o_n__3_d_m___c_h_u_n_k.html">ON_3DM_CHUNK</a></div><div class="ttdef"><b>Definition:</b> opennurbs_archive.h:662</div></div>
<div class="ttc" id="astructz__stream__s_html"><div class="ttname"><a href="structz__stream__s.html">z_stream_s</a></div><div class="ttdef"><b>Definition:</b> zlib.h:82</div></div>
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